diff --git a/wst/trunk/type_lib_edtr/uinterfaceedit.pas b/wst/trunk/type_lib_edtr/uinterfaceedit.pas
index adddd0b96..746a24745 100644
--- a/wst/trunk/type_lib_edtr/uinterfaceedit.pas
+++ b/wst/trunk/type_lib_edtr/uinterfaceedit.pas
@@ -151,6 +151,7 @@ begin
   trvMethods.BeginUpdate();
   try
     node.Free();
+    (locObj.Parent as TPasClassType).Members.Extract(locObj);
     locObj.Release();
   finally
     trvMethods.EndUpdate();