diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 5baf6d4..8068294 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -301,6 +301,10 @@
         @Override
         public void onNavigationBarSurface(SurfaceControl surface) {
             // TODO: implement
+            if (surface != null) {
+                surface.release();
+                surface = null;
+            }
         }
 
         @BinderThread