diff --git a/core/java/android/window/IBackAnimationFinishedCallback.aidl b/core/java/android/window/IBackAnimationFinishedCallback.aidl
index 8afc003256edd..f034339add6e8 100644
--- a/core/java/android/window/IBackAnimationFinishedCallback.aidl
+++ b/core/java/android/window/IBackAnimationFinishedCallback.aidl
@@ -22,6 +22,6 @@ package android.window;
  * @param trigger Whether the back gesture has passed the triggering threshold.
  * {@hide}
  */
-oneway interface IBackAnimationFinishedCallback {
+interface IBackAnimationFinishedCallback {
     void onAnimationFinished(in boolean triggerBack);
 }
\ No newline at end of file