diff --git a/apps/ai-game-creator-shell/src/features/ui-editor/useUiEditorState.ts b/apps/ai-game-creator-shell/src/features/ui-editor/useUiEditorState.ts
index 2ef8569e5..6b14446ec 100644
--- a/apps/ai-game-creator-shell/src/features/ui-editor/useUiEditorState.ts
+++ b/apps/ai-game-creator-shell/src/features/ui-editor/useUiEditorState.ts
@@ -567,7 +567,7 @@ export function useUiEditorState(initialState: State = EMPTY_UI_EDITOR_STATE) {
       if (sameResource(current, nextState)) return false;
       undoStackRef.current.push({
         before: cloneState(current),
-        after: cloneState(nextState),
+        after: nextState,
       });
       if (undoStackRef.current.length > MAX_HISTORY_LENGTH) {
         undoStackRef.current.shift();