diff --git a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
index ed81d7e..1bac5df 100644
--- a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -262,15 +262,13 @@
             } else {
                 mHomeAlpha = new AnimatedFloat(this::updateHomeAlpha);
                 mHomeAlpha.value = 0;
-                runActionOnRemoteHandles(remoteTargetHandle ->
-                        remoteTargetHandle.getTransformParams().setHomeBuilderProxy(
-                                FallbackHomeAnimationFactory.this
-                                        ::updateHomeActivityTransformDuringHomeAnim));
+                mHomeAlphaParams.setHomeBuilderProxy(
+                        this::updateHomeActivityTransformDuringHomeAnim);
             }
 
             mRecentsAlpha.value = 1;
             runActionOnRemoteHandles(remoteTargetHandle ->
-                    remoteTargetHandle.getTransformParams().setHomeBuilderProxy(
+                    remoteTargetHandle.getTransformParams().setBaseBuilderProxy(
                             FallbackHomeAnimationFactory.this
                                     ::updateRecentsActivityTransformDuringHomeAnim));
         }