diff --git a/core/java/com/android/internal/widget/DecorCaptionView.java b/core/java/com/android/internal/widget/DecorCaptionView.java
index a497e4f7a37108b682ca434fdb0e52267cf874b1..86b545f8ee939d522915528203c3790ae768906e 100644
--- a/core/java/com/android/internal/widget/DecorCaptionView.java
+++ b/core/java/com/android/internal/widget/DecorCaptionView.java
@@ -368,7 +368,7 @@ public class DecorCaptionView extends ViewGroup implements View.OnTouchListener,
                 firstSetProperty = false;
                 final int captionWidth = mCaption.getRight() - mCaption.getLeft();
                 showButton(WindowProperty.HIDE_BACK, mCaptionButton.getBack(), mCaptionButton.getBackRect(),
-                                new Rect(0, 0, captionHeight, captionWidth));
+                                new Rect(0, 0, captionHeight, captionHeight));
 
                 Rect showRect = new Rect(captionWidth - captionHeight, 0, captionWidth, captionHeight);
                 showButtonFromRight(WindowProperty.HIDE_CLOSE, mCaptionButton.getClose(),