diff --git a/src/ifcopenshell-python/ifcopenshell/util/element.py b/src/ifcopenshell-python/ifcopenshell/util/element.py
index 9d496d8464..654ef21fa0 100644
--- a/src/ifcopenshell-python/ifcopenshell/util/element.py
+++ b/src/ifcopenshell-python/ifcopenshell/util/element.py
@@ -28,6 +28,7 @@ def get_property_definition(definition):
             for prop in range(4, len(definition)):
                 if definition[prop] is not None:
                     props[definition.attribute_name(prop)] = definition[prop]
+        props["id"] = definition.id()
         return props
 
 
diff --git a/src/ifcopenshell-python/test/util/test_element.py b/src/ifcopenshell-python/test/util/test_element.py
index 818ffd9f12..e305e3b3ef 100644
--- a/src/ifcopenshell-python/test/util/test_element.py
+++ b/src/ifcopenshell-python/test/util/test_element.py
@@ -10,14 +10,14 @@ class TestGetPsetsIFC4(test.bootstrap.IFC4):
         assert subject.get_psets(element) == {}
         pset = ifcopenshell.api.run("pset.add_pset", self.file, product=element, name="name")
         ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"a": "b"})
-        assert subject.get_psets(element) == {"name": {"a": "b"}}
+        assert subject.get_psets(element) == {"name": {"a": "b", "id": 2}}
 
     def test_getting_the_psets_of_a_product_type_as_a_dictionary(self):
         type_element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWallType")
         assert subject.get_psets(type_element) == {}
         pset = ifcopenshell.api.run("pset.add_pset", self.file, product=type_element, name="name")
         ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"x": "y"})
-        assert subject.get_psets(type_element) == {"name": {"x": "y"}}
+        assert subject.get_psets(type_element) == {"name": {"x": "y", "id": 2}}
 
     def test_getting_psets_from_an_element_which_cannot_have_psets(self):
         assert subject.get_psets(self.file.create_entity("IfcPerson")) == {}
@@ -28,18 +28,18 @@ class TestGetPropertyDefinitionIFC4(test.bootstrap.IFC4):
         element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
         pset = ifcopenshell.api.run("pset.add_pset", self.file, product=element, name="name")
         ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"a": "b"})
-        assert subject.get_property_definition(pset) == {"a": "b"}
+        assert subject.get_property_definition(pset) == {"a": "b", "id": 2}
 
     def test_getting_the_properties_of_a_qto(self):
         element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
         qto = ifcopenshell.api.run("pset.add_qto", self.file, product=element, name="name")
         ifcopenshell.api.run("pset.edit_qto", self.file, qto=qto, properties={"x": 42})
-        assert subject.get_property_definition(qto) == {"x": 42}
+        assert subject.get_property_definition(qto) == {"x": 42, "id": 2}
 
     def test_getting_the_properties_of_a_predefined_pset(self):
         pset = self.file.create_entity("IfcDoorLiningProperties", ifcopenshell.guid.new())
         pset.LiningDepth = 42
-        assert subject.get_property_definition(pset) == {"LiningDepth": 42}
+        assert subject.get_property_definition(pset) == {"LiningDepth": 42, "id": 1}
 
 
 class TestGetQuantitiesIFC4(test.bootstrap.IFC4):