diff --git a/CSharp/Libraries/UniversalEditor.UserInterface/Editor.cs b/CSharp/Libraries/UniversalEditor.UserInterface/Editor.cs
index ae53f808..b4379cc4 100644
--- a/CSharp/Libraries/UniversalEditor.UserInterface/Editor.cs
+++ b/CSharp/Libraries/UniversalEditor.UserInterface/Editor.cs
@@ -418,7 +418,7 @@ namespace UniversalEditor.UserInterface
 			}
 
 			// push the new edit
-			EDITINFO edit = new EDITINFO(null, null, mvarObjectModel);
+			EDITINFO edit = new EDITINFO(null, null, mvarObjectModel.Clone() as ObjectModel);
 			undo.Push(edit);
 
 			// clear out all the redos