diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 71924b0ccaa43..311ccb3a0b785 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -2936,7 +2936,7 @@ public final class ActivityStackSupervisor implements DisplayListener {
         }
     }
 
-    class ActivityContainer extends IActivityContainer.Stub {
+    class ActivityContainer extends android.app.IActivityContainer.Stub {
         final int mStackId;
         IActivityContainerCallback mCallback = null;
         final ActivityStack mStack;