diff --git a/src/Mod/Draft/draftguitools/gui_edit.py b/src/Mod/Draft/draftguitools/gui_edit.py
index 3425a9063b..c62650eea4 100644
--- a/src/Mod/Draft/draftguitools/gui_edit.py
+++ b/src/Mod/Draft/draftguitools/gui_edit.py
@@ -750,7 +750,7 @@ class Edit(gui_base_original.Modifier):
         """
         if (hasattr(obj, 'obj_gui_tools') or
             (hasattr(obj, 'Proxy') and hasattr(obj.Proxy, 'obj_gui_tools')) or
-            (utils.get_type(obj) in self.gui_tools_repository) ):
+            (utils.get_type(obj) in self.gui_tools_repository.keys()) ):
             return True
         else:
             return False