diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
index 12e85beba0c67..ad4d450fd9474 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
@@ -2336,6 +2336,9 @@ public class NotificationPanelViewController extends PanelViewController {
             final int startTop = mKeyguardStatusAreaClipBounds.top;
             final int startRight = mKeyguardStatusAreaClipBounds.right;
             final int startBottom = mKeyguardStatusAreaClipBounds.bottom;
+            if (mQsClippingAnimation != null) {
+                mQsClippingAnimation.cancel();
+            }
             mQsClippingAnimation = ValueAnimator.ofFloat(0.0f, 1.0f);
             mQsClippingAnimation.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
             mQsClippingAnimation.setDuration(mNotificationBoundsAnimationDuration);