diff --git a/speckle_connector/src/speckle_objects/other/revit/revit_definition.rb b/speckle_connector/src/speckle_objects/other/revit/revit_definition.rb
index 269abca..aa2e43a 100644
--- a/speckle_connector/src/speckle_objects/other/revit/revit_definition.rb
+++ b/speckle_connector/src/speckle_objects/other/revit/revit_definition.rb
@@ -16,7 +16,7 @@ module SpeckleConnector
             type = def_obj['type']
             category = def_obj['category']
 
-            return "#{family}-#{type}-#{category}"
+            return "#{family}-#{type}-#{category}-#{def_obj['id']}"
           end
 
           def self.to_native(state, definition, layer, entities, &convert_to_native)