diff --git a/src/com/android/gallery3d/filtershow/FilterShowActivity.java b/src/com/android/gallery3d/filtershow/FilterShowActivity.java
index e5ddbf5..67ae3b5 100644
--- a/src/com/android/gallery3d/filtershow/FilterShowActivity.java
+++ b/src/com/android/gallery3d/filtershow/FilterShowActivity.java
@@ -721,6 +721,7 @@
                 int position = adapter.undo();
                 mMasterImage.onHistoryItemClick(position);
                 mImageShow.showToast("Undo");
+                backToMain();
                 invalidateViews();
                 return true;
             }