diff --git a/services/java/com/android/server/PowerManagerService.java b/services/java/com/android/server/PowerManagerService.java
index f68bcbbcb7346..8a7c28fc1fc17 100644
--- a/services/java/com/android/server/PowerManagerService.java
+++ b/services/java/com/android/server/PowerManagerService.java
@@ -1803,6 +1803,8 @@ class PowerManagerService extends IPowerManager.Stub
     }
 
     private void forceUserActivityLocked() {
+        // cancel animation so userActivity will succeed
+        mScreenBrightness.animating = false;
         boolean savedActivityAllowed = mUserActivityAllowed;
         mUserActivityAllowed = true;
         userActivity(SystemClock.uptimeMillis(), false);