diff --git a/src/blenderbim/blenderbim/bim/module/constraint/prop.py b/src/blenderbim/blenderbim/bim/module/constraint/prop.py
index 003164345e..7f9fe99a13 100644
--- a/src/blenderbim/blenderbim/bim/module/constraint/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/constraint/prop.py
@@ -17,7 +17,9 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
-from blenderbim.bim.prop import StrProperty, Attribute, get_ifc_entity_description
+from ifcopenshell.util.doc import get_entity_doc
+import blenderbim.tool as tool
+from blenderbim.bim.prop import Attribute
 from bpy.types import PropertyGroup
 from bpy.props import (
     PointerProperty,
@@ -32,7 +34,8 @@ from bpy.props import (
 
 
 def get_available_constraint_types(self, context):
-    return [(c, c, get_ifc_entity_description(c)) for c in ["IfcObjective"]]
+    version = tool.Ifc.get_schema()
+    return [(c, c, get_entity_doc(version, c).get("description", "")) for c in ["IfcObjective"]]
 
 
 class Constraint(PropertyGroup):
diff --git a/src/blenderbim/blenderbim/bim/module/material/data.py b/src/blenderbim/blenderbim/bim/module/material/data.py
index 37171d2867..43983aab8b 100644
--- a/src/blenderbim/blenderbim/bim/module/material/data.py
+++ b/src/blenderbim/blenderbim/bim/module/material/data.py
@@ -21,7 +21,6 @@ import bpy
 import ifcopenshell
 import ifcopenshell.util.schema
 import blenderbim.tool as tool
-from blenderbim.bim.prop import get_ifc_entity_description
 
 
 def refresh():
@@ -66,9 +65,12 @@ class MaterialsData:
             "IfcMaterialProfileSet",
             "IfcMaterialList",
         ]
-        if tool.Ifc.get_schema() == "IFC2X3":
+        version = tool.Ifc.get_schema()
+        if version == "IFC2X3":
             material_types = ["IfcMaterial", "IfcMaterialLayerSet", "IfcMaterialList"]
-        return [(m, m, get_ifc_entity_description(m)) for m in material_types]
+        return [
+            (m, m, ifcopenshell.util.doc.get_entity_doc(version, m).get("description", "")) for m in material_types
+        ]
 
 
 class ObjectMaterialData:
diff --git a/src/blenderbim/blenderbim/bim/module/material/prop.py b/src/blenderbim/blenderbim/bim/module/material/prop.py
index adad4522bc..017ef6ddfa 100644
--- a/src/blenderbim/blenderbim/bim/module/material/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/material/prop.py
@@ -17,10 +17,12 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
+from ifcopenshell.util.doc import get_entity_doc
 from ifcopenshell.api.material.data import Data
+import blenderbim.tool as tool
 from blenderbim.bim.module.material.data import MaterialsData, ObjectMaterialData
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.prop import StrProperty, Attribute, get_ifc_entity_description
+from blenderbim.bim.prop import StrProperty, Attribute
 from bpy.types import PropertyGroup
 from bpy.props import (
     PointerProperty,
@@ -50,9 +52,11 @@ def purge():
 def get_profile_classes(self, context):
     global profileclasses_enum
     if len(profileclasses_enum) == 0 and IfcStore.get_schema():
+        version = tool.Ifc.get_schema()
         profileclasses_enum.clear()
         profileclasses_enum = [
-            (t.name(), t.name(), get_ifc_entity_description(t.name())) for t in IfcStore.get_schema().declaration_by_name("IfcProfileDef").subtypes()
+            (t.name(), t.name(), get_entity_doc(version, t.name()).get("description", ""))
+            for t in IfcStore.get_schema().declaration_by_name("IfcProfileDef").subtypes()
         ]
     return profileclasses_enum
 
@@ -60,15 +64,16 @@ def get_profile_classes(self, context):
 def get_parameterized_profile_classes(self, context):
     global parameterizedprofileclasses_enum
     if len(parameterizedprofileclasses_enum) == 0 and IfcStore.get_schema():
+        version = tool.Ifc.get_schema()
         parameterizedprofileclasses_enum.clear()
         parameterizedprofileclasses_enum = [
-            (t.name(), t.name(), get_ifc_entity_description(t.name()))
+            (t.name(), t.name(), get_entity_doc(version, t.name()).get("description", ""))
             for t in IfcStore.get_schema().declaration_by_name("IfcParameterizedProfileDef").subtypes()
         ]
         for ifc_class in parameterizedprofileclasses_enum:
             parameterizedprofileclasses_enum.extend(
                 [
-                    (t.name(), t.name(), get_ifc_entity_description(t.name()))
+                    (t.name(), t.name(), get_entity_doc(version, t.name()).get("description", ""))
                     for t in IfcStore.get_schema().declaration_by_name(ifc_class[0]).subtypes() or []
                 ]
             )
@@ -93,10 +98,11 @@ def get_object_material_types(self, context):
             "IfcMaterialProfileSetUsage",
             "IfcMaterialList",
         ]
-        if IfcStore.get_file().schema == "IFC2X3":
+        version = tool.Ifc.get_schema()
+        if version == "IFC2X3":
             material_types = ["IfcMaterial", "IfcMaterialLayerSet", "IfcMaterialLayerSetUsage", "IfcMaterialList"]
         materialtypes_enum.clear()
-        materialtypes_enum = [(m, m, get_ifc_entity_description(m)) for m in material_types]
+        materialtypes_enum = [(m, m, get_entity_doc(version, m).get("description", "")) for m in material_types]
     return materialtypes_enum
 
 
diff --git a/src/blenderbim/blenderbim/bim/module/model/data.py b/src/blenderbim/blenderbim/bim/module/model/data.py
index 9aec066036..f980ef9c75 100644
--- a/src/blenderbim/blenderbim/bim/module/model/data.py
+++ b/src/blenderbim/blenderbim/bim/module/model/data.py
@@ -22,10 +22,11 @@ import json
 import functools
 import ifcopenshell
 import ifcopenshell.util.element
+from ifcopenshell.util.doc import get_entity_doc
 import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.model.root import ConstrTypeEntityNotFound
-from blenderbim.bim.prop import get_ifc_entity_description, get_predefined_type_description
+from blenderbim.bim.prop import get_predefined_type_description
 
 
 def refresh():
@@ -64,7 +65,8 @@ class AuthoringData:
         declarations = ifcopenshell.util.schema.get_subtypes(declaration)
         names = [d.name() for d in declarations]
         names.extend(("IfcDoorStyle", "IfcWindowStyle"))
-        return [(c, c, get_ifc_entity_description(c)) for c in sorted(names)]
+        version = tool.Ifc.get_schema()
+        return [(c, c, get_entity_doc(version, c).get("description", "")) for c in sorted(names)]
 
     @classmethod
     def type_predefined_type(cls):
diff --git a/src/blenderbim/blenderbim/bim/module/owner/prop.py b/src/blenderbim/blenderbim/bim/module/owner/prop.py
index b2466041ba..1884a4f719 100644
--- a/src/blenderbim/blenderbim/bim/module/owner/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/owner/prop.py
@@ -17,7 +17,9 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
-from blenderbim.bim.prop import StrProperty, Attribute, get_ifc_entity_description
+from ifcopenshell.util.doc import get_entity_doc
+import blenderbim.tool as tool
+from blenderbim.bim.prop import StrProperty, Attribute
 from blenderbim.bim.module.owner.data import OwnerData, ActorData, ObjectActorData
 from bpy.types import PropertyGroup
 from bpy.props import (
@@ -65,17 +67,19 @@ def update_actor_class(self, context):
 
 
 def get_actor_class_enum(self, context):
+    version = tool.Ifc.get_schema()
     return [
-        ("IfcActor", "Actor", get_ifc_entity_description("IfcActor")),
-        ("IfcOccupant", "Occupant", get_ifc_entity_description("IfcOccupant")),
+        ("IfcActor", "Actor", get_entity_doc(version, "IfcActor").get("description", "")),
+        ("IfcOccupant", "Occupant", get_entity_doc(version, "IfcOccupant").get("description", "")),
     ]
 
 
 def get_actor_type_enum(self, context):
+    version = tool.Ifc.get_schema()
     return [
-        ("IfcPerson", "Person", get_ifc_entity_description("IfcPerson")),
-        ("IfcOrganization", "Organisation", get_ifc_entity_description("IfcOrganization")),
-        ("IfcPersonAndOrganization", "User", get_ifc_entity_description("IfcPersonAndOrganization")),
+        ("IfcPerson", "Person", get_entity_doc(version, "IfcPerson").get("description", "")),
+        ("IfcOrganization", "Organisation", get_entity_doc(version, "IfcOrganization").get("description", "")),
+        ("IfcPersonAndOrganization", "User", get_entity_doc(version, "IfcPersonAndOrganization").get("description", "")),
     ]
 
 
diff --git a/src/blenderbim/blenderbim/bim/module/pset/data.py b/src/blenderbim/blenderbim/bim/module/pset/data.py
index 74cb0b353e..aa4c81fe6a 100644
--- a/src/blenderbim/blenderbim/bim/module/pset/data.py
+++ b/src/blenderbim/blenderbim/bim/module/pset/data.py
@@ -175,6 +175,6 @@ class AddEditCustomPropertiesData:
         schema = tool.Ifc.schema()
         version = tool.Ifc.get_schema()
         return [
-            (t, t, ifcopenshell.util.doc.get_type_doc(version, t).get("description"))
+            (t, t, ifcopenshell.util.doc.get_type_doc(version, t).get("description", ""))
             for t in sorted([d.name() for d in schema.declarations() if hasattr(d, "declared_type")])
         ]
diff --git a/src/blenderbim/blenderbim/bim/module/pset/prop.py b/src/blenderbim/blenderbim/bim/module/pset/prop.py
index 26441fc876..083ba585a9 100644
--- a/src/blenderbim/blenderbim/bim/module/pset/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/pset/prop.py
@@ -146,7 +146,7 @@ def get_qto_names(self, context):
 def get_template_type(self, context):
     version = tool.Ifc.get_schema()
     for t in ("IfcPropertySingleValue", "IfcPropertyEnumeratedValue"):
-        yield (t, t, ifcopenshell.util.doc.get_entity_doc(version, t).get("description"))
+        yield (t, t, ifcopenshell.util.doc.get_entity_doc(version, t).get("description", ""))
 
 
 def get_primary_measure_type(self, context):
diff --git a/src/blenderbim/blenderbim/bim/module/pset_template/data.py b/src/blenderbim/blenderbim/bim/module/pset_template/data.py
index 5481e50211..8af3a19bbb 100644
--- a/src/blenderbim/blenderbim/bim/module/pset_template/data.py
+++ b/src/blenderbim/blenderbim/bim/module/pset_template/data.py
@@ -21,7 +21,6 @@ import bpy
 import ifcopenshell
 import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.prop import get_ifc_entity_description
 
 
 def refresh():
@@ -46,7 +45,7 @@ class PsetTemplatesData:
         schema = tool.Ifc.schema()
         version = tool.Ifc.get_schema()
         return [
-            (t, t, ifcopenshell.util.doc.get_type_doc(version, t).get("description"))
+            (t, t, ifcopenshell.util.doc.get_type_doc(version, t).get("description", ""))
             for t in sorted([d.name() for d in schema.declarations() if hasattr(d, "declared_type")])
         ]
 
diff --git a/src/blenderbim/blenderbim/bim/module/root/data.py b/src/blenderbim/blenderbim/bim/module/root/data.py
index c91da4dfa6..cedd5b8ef7 100644
--- a/src/blenderbim/blenderbim/bim/module/root/data.py
+++ b/src/blenderbim/blenderbim/bim/module/root/data.py
@@ -19,9 +19,10 @@
 from collections import defaultdict
 import bpy
 import ifcopenshell.util.element
+from ifcopenshell.util.doc import get_entity_doc
 import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.prop import get_ifc_entity_description, get_predefined_type_description
+from blenderbim.bim.prop import get_predefined_type_description
 
 
 def refresh():
@@ -57,7 +58,8 @@ class IfcClassData:
             "IfcAnnotation",
             "IfcRelSpaceBoundary",
         ]
-        if tool.Ifc.get_schema() == "IFC2X3":
+        version = tool.Ifc.get_schema()
+        if version == "IFC2X3":
             products = [
                 "IfcElement",
                 "IfcElementType",
@@ -67,7 +69,7 @@ class IfcClassData:
                 "IfcAnnotation",
                 "IfcRelSpaceBoundary",
             ]
-        return [(e, e, get_ifc_entity_description(e)) for e in products]
+        return [(e, e, get_entity_doc(version, e).get("description", "")) for e in products]
 
     @classmethod
     def ifc_classes(cls):
@@ -77,7 +79,8 @@ class IfcClassData:
         names = [d.name() for d in declarations]
         if ifc_product == "IfcElementType":
             names.extend(("IfcDoorStyle", "IfcWindowStyle"))
-        return [(c, c, get_ifc_entity_description(c)) for c in sorted(names)]
+        version = tool.Ifc.get_schema()
+        return [(c, c, get_entity_doc(version, c).get("description", "")) for c in sorted(names)]
 
     @classmethod
     def ifc_predefined_types(cls):
diff --git a/src/blenderbim/blenderbim/bim/module/structural/prop.py b/src/blenderbim/blenderbim/bim/module/structural/prop.py
index 3397157687..ac1a6a0f6d 100644
--- a/src/blenderbim/blenderbim/bim/module/structural/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/structural/prop.py
@@ -16,11 +16,13 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
-import bpy
-from blenderbim.bim.ifc import IfcStore
 from math import radians
-from blenderbim.bim.prop import StrProperty, Attribute, get_ifc_entity_description
+import bpy
 from ifcopenshell.api.structural.data import Data
+from ifcopenshell.util.doc import get_entity_doc
+import blenderbim.tool as tool
+from blenderbim.bim.ifc import IfcStore
+from blenderbim.bim.prop import StrProperty, Attribute
 from bpy.types import PropertyGroup
 from bpy.props import (
     PointerProperty,
@@ -89,8 +91,12 @@ def get_structural_load_types(self, context):
     file = IfcStore.get_file()
     if len(structuralloadtypes_enum) < 1 and file:
         declaration = IfcStore.get_schema().declaration_by_name("IfcStructuralLoadStatic")
+        version = tool.Ifc.get_schema()
         structuralloadtypes_enum.extend(
-            [(d.name(), d.name(), get_ifc_entity_description(d.name())) for d in declaration.subtypes()]
+            [
+                (d.name(), d.name(), get_entity_doc(version, d.name()).get("description", ""))
+                for d in declaration.subtypes()
+            ]
         )
     return structuralloadtypes_enum
 
@@ -99,8 +105,10 @@ def get_boundary_condition_types(self, context):
     file = IfcStore.get_file()
     if file:
         declaration = IfcStore.get_schema().declaration_by_name("IfcBoundaryCondition")
+        version = tool.Ifc.get_schema()
         boundaryconditiontypes_enum = [
-            (d.name(), d.name(), get_ifc_entity_description(d.name())) for d in declaration.subtypes()
+            (d.name(), d.name(), get_entity_doc(version, d.name()).get("description", ""))
+            for d in declaration.subtypes()
         ]
         return boundaryconditiontypes_enum
     return []
diff --git a/src/blenderbim/blenderbim/bim/module/style/data.py b/src/blenderbim/blenderbim/bim/module/style/data.py
index df9da618a1..7801122228 100644
--- a/src/blenderbim/blenderbim/bim/module/style/data.py
+++ b/src/blenderbim/blenderbim/bim/module/style/data.py
@@ -17,9 +17,9 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
-import blenderbim.tool as tool
 import ifcopenshell
-from blenderbim.bim.prop import get_ifc_entity_description
+from ifcopenshell.util.doc import get_entity_doc
+import blenderbim.tool as tool
 
 
 def refresh():
@@ -39,7 +39,10 @@ class StylesData:
     def style_types(cls):
         declaration = tool.Ifc.schema().declaration_by_name("IfcPresentationStyle")
         declarations = ifcopenshell.util.schema.get_subtypes(declaration)
-        return [(c, c, get_ifc_entity_description(c)) for c in sorted([d.name() for d in declarations])]
+        version = tool.Ifc.get_schema()
+        return [
+            (c, c, get_entity_doc(version, c).get("description", "")) for c in sorted([d.name() for d in declarations])
+        ]
 
     @classmethod
     def total_styles(cls):
diff --git a/src/blenderbim/blenderbim/bim/module/system/data.py b/src/blenderbim/blenderbim/bim/module/system/data.py
index 244972f75d..22060e9c42 100644
--- a/src/blenderbim/blenderbim/bim/module/system/data.py
+++ b/src/blenderbim/blenderbim/bim/module/system/data.py
@@ -19,8 +19,8 @@
 import bpy
 import ifcopenshell
 import ifcopenshell.util.schema
+from ifcopenshell.util.doc import get_entity_doc
 import blenderbim.tool as tool
-from blenderbim.bim.prop import get_ifc_entity_description
 
 
 def refresh():
@@ -45,9 +45,10 @@ class SystemData:
     def system_class(cls):
         declaration = tool.Ifc.schema().declaration_by_name("IfcSystem")
         declarations = ifcopenshell.util.schema.get_subtypes(declaration)
+        version = tool.Ifc.get_schema()
         # We're only interested in systems for services. Not sure why IFC groups these together.
         return [
-            (c, c, get_ifc_entity_description(c))
+            (c, c, get_entity_doc(version, c).get("description", ""))
             for c in sorted([d.name() for d in declarations])
             if c not in ("IfcZone", "IfcStructuralAnalysisModel")
         ]
diff --git a/src/blenderbim/blenderbim/bim/module/type/data.py b/src/blenderbim/blenderbim/bim/module/type/data.py
index 0a5470479f..1d23c3363f 100644
--- a/src/blenderbim/blenderbim/bim/module/type/data.py
+++ b/src/blenderbim/blenderbim/bim/module/type/data.py
@@ -19,8 +19,8 @@
 import bpy
 import ifcopenshell.util.type
 import ifcopenshell.util.element
+from ifcopenshell.util.doc import get_entity_doc
 import blenderbim.tool as tool
-from blenderbim.bim.prop import get_ifc_entity_description
 
 
 def refresh():
@@ -54,8 +54,9 @@ class TypeData:
         element = tool.Ifc.get_entity(obj)
         if not element:
             return []
-        types = ifcopenshell.util.type.get_applicable_types(element.is_a(), schema=tool.Ifc.get_schema())
-        results.extend((t, t, get_ifc_entity_description(t)) for t in types)
+        version = tool.Ifc.get_schema()
+        types = ifcopenshell.util.type.get_applicable_types(element.is_a(), schema=version)
+        results.extend((t, t, get_entity_doc(version, t).get("description", "")) for t in types)
         return results
 
     @classmethod
@@ -87,7 +88,4 @@ class TypeData:
         element = tool.Ifc.get_entity(bpy.context.active_object)
         element_type = ifcopenshell.util.element.get_type(element)
         if element_type:
-            return {
-                "id": element_type.id(),
-                "name":f"{element_type.is_a()}/{element_type.Name or 'Unnamed'}"
-            }
+            return {"id": element_type.id(), "name": f"{element_type.is_a()}/{element_type.Name or 'Unnamed'}"}
diff --git a/src/blenderbim/blenderbim/bim/module/unit/data.py b/src/blenderbim/blenderbim/bim/module/unit/data.py
index 7b75b59eac..95383dbdf9 100644
--- a/src/blenderbim/blenderbim/bim/module/unit/data.py
+++ b/src/blenderbim/blenderbim/bim/module/unit/data.py
@@ -20,8 +20,8 @@ import ifcopenshell
 import ifcopenshell.util.unit
 import ifcopenshell.util.schema
 import ifcopenshell.util.attribute
+from ifcopenshell.util.doc import get_entity_doc
 import blenderbim.tool as tool
-from blenderbim.bim.prop import get_ifc_entity_description
 
 
 def refresh():
@@ -45,8 +45,20 @@ class UnitsData:
     @classmethod
     def unit_classes(cls):
         declarations = ifcopenshell.util.schema.get_subtypes(tool.Ifc.schema().declaration_by_name("IfcNamedUnit"))
-        results = [(c, c, get_ifc_entity_description(c)) for c in sorted([d.name() for d in declarations])]
-        results.extend([("IfcDerivedUnit", "IfcDerivedUnit", ""), ("IfcMonetaryUnit", "IfcMonetaryUnit", "")])
+        version = tool.Ifc.get_schema()
+        results = [
+            (c, c, get_entity_doc(version, c).get("description", "")) for c in sorted([d.name() for d in declarations])
+        ]
+        results.extend(
+            [
+                ("IfcDerivedUnit", "IfcDerivedUnit", get_entity_doc(version, "IfcDerivedUnit").get("description", "")),
+                (
+                    "IfcMonetaryUnit",
+                    "IfcMonetaryUnit",
+                    get_entity_doc(version, "IfcMonetaryUnit").get("description", ""),
+                ),
+            ]
+        )
         return results
 
     @classmethod
diff --git a/src/blenderbim/blenderbim/bim/operator.py b/src/blenderbim/blenderbim/bim/operator.py
index 2989d9797b..416cce6bfb 100644
--- a/src/blenderbim/blenderbim/bim/operator.py
+++ b/src/blenderbim/blenderbim/bim/operator.py
@@ -29,7 +29,7 @@ import blenderbim.tool as tool
 from . import schema
 from blenderbim.bim import import_ifc
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.prop import StrProperty, get_ifc_entity_doc_url
+from blenderbim.bim.prop import StrProperty
 from blenderbim.bim.ui import IFCFileSelector
 from blenderbim.bim.helper import get_enum_items
 from mathutils import Vector, Matrix, Euler
@@ -706,7 +706,9 @@ class BIM_OT_show_description(bpy.types.Operator):
         wrapper = textwrap.TextWrapper(width=80)
         for line in wrapper.wrap(self.description):
             layout.label(text=line)
-        url = get_ifc_entity_doc_url(self.ifc_class)
+        version = tool.Ifc.get_schema()
+        doc = ifcopenshell.util.doc.get_entity_doc(version, self.ifc_class)
+        url = doc.get("spec_url")
         if url:
             url_op = layout.operator("bim.open_webbrowser", icon="URL", text="Online IFC Documentation")
             url_op.url = url
diff --git a/src/blenderbim/blenderbim/bim/prop.py b/src/blenderbim/blenderbim/bim/prop.py
index f419c92b5c..b52fe6746f 100644
--- a/src/blenderbim/blenderbim/bim/prop.py
+++ b/src/blenderbim/blenderbim/bim/prop.py
@@ -106,22 +106,6 @@ def cache_string(s):
 cache_string.data = {}
 
 
-def get_ifc_entity_docs(ifc_entity):
-    schema = tool.Ifc.get_schema()
-    if schema is not None:
-        return get_entity_doc(schema, ifc_entity)
-
-
-def get_ifc_entity_description(ifc_entity):
-    docs = get_ifc_entity_docs(ifc_entity)
-    return docs.get("description", "") if docs is not None else ""
-
-
-def get_ifc_entity_doc_url(ifc_entity):
-    docs = get_ifc_entity_docs(ifc_entity)
-    return docs.get("spec_url", "") if docs is not None else ""
-
-
 def get_predefined_type_description(entity, predefined_type):
     schema = tool.Ifc.get_schema()
     if schema is not None:
diff --git a/src/blenderbim/blenderbim/bim/ui.py b/src/blenderbim/blenderbim/bim/ui.py
index 00789c0c9b..51d9aab752 100644
--- a/src/blenderbim/blenderbim/bim/ui.py
+++ b/src/blenderbim/blenderbim/bim/ui.py
@@ -401,21 +401,21 @@ def draw_custom_context_menu(self, context):
     prop_value = getattr(prop, prop_name, None)
     if prop_value is None:
         return
-    schema = tool.Ifc.get_schema()
+    version = tool.Ifc.get_schema()
     
     docs = {}
     try:
-        docs = get_entity_doc(schema, prop_value)
+        docs = get_entity_doc(version, prop_value)
         if docs is None:
             raise RuntimeError
     except RuntimeError:
         try:
-            docs = get_type_doc(schema, prop_value)
+            docs = get_type_doc(version, prop_value)
             if docs is None:
                 raise RuntimeError
         except RuntimeError:
             try:
-                docs = get_property_set_doc(schema, prop_value)
+                docs = get_property_set_doc(version, prop_value)
                 if docs is None:
                     raise RuntimeError
             except RuntimeError: