diff --git a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
index 8aaa40c..711ef58 100644
--- a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -181,6 +181,8 @@
                 }
 
                 alpha = mTaskAlphaCallback.apply(app, alpha);
+            } else {
+                crop = null;
             }
 
             params[i] = new SurfaceParams(app.leash, alpha, mTmpMatrix, crop,