diff --git a/src/blenderbim/blenderbim/tool/blender.py b/src/blenderbim/blenderbim/tool/blender.py
index 18a09ab0db..245a8e8829 100644
--- a/src/blenderbim/blenderbim/tool/blender.py
+++ b/src/blenderbim/blenderbim/tool/blender.py
@@ -38,7 +38,7 @@ VIEWPORT_ATTRIBUTES = [
 ]
 
 
-class Blender:
+class Blender(blenderbim.core.tool.Blender):
     OBJECT_TYPES_THAT_SUPPORT_EDIT_MODE = ("MESH", "CURVE", "SURFACE", "META", "FONT", "LATTICE", "ARMATURE")
     OBJECT_TYPES_THAT_SUPPORT_EDIT_GPENCIL_MODE = ("GPENCIL",)
 
diff --git a/src/blenderbim/test/tool/test_blender.py b/src/blenderbim/test/tool/test_blender.py
index fb33323db9..e05e98f98a 100644
--- a/src/blenderbim/test/tool/test_blender.py
+++ b/src/blenderbim/test/tool/test_blender.py
@@ -15,3 +15,32 @@
 #
 # 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
+import ifcopenshell
+import blenderbim.core.tool
+import blenderbim.tool as tool
+from test.bim.bootstrap import NewFile
+from blenderbim.tool.blender import Blender as subject
+
+
+class TestImplementsTool(NewFile):
+    def test_run(self):
+        assert isinstance(subject(), blenderbim.core.tool.Blender)
+
+
+class TestCopyNodeGraph(NewFile):
+    def test_run(self):
+        material_to = bpy.data.materials.new("material_to")
+        material_to.use_nodes = True
+        material_to_nodes = material_to.node_tree.nodes
+        assert len(material_to_nodes) == 2
+        for node in material_to_nodes:
+            material_to_nodes.remove(node)
+        assert len(material_to_nodes) == 0
+
+        material_from = bpy.data.materials.new("material_from")
+        material_from.use_nodes = True
+
+        subject.copy_node_graph(material_to, material_from)
+        assert len(material_to_nodes) == 2