diff --git a/media/java/android/media/session/IOnMediaKeyListener.aidl b/media/java/android/media/session/IOnMediaKeyListener.aidl
index 7752357a7d976..aa98ea312ab96 100644
--- a/media/java/android/media/session/IOnMediaKeyListener.aidl
+++ b/media/java/android/media/session/IOnMediaKeyListener.aidl
@@ -22,7 +22,7 @@ import android.view.KeyEvent;
  * Listener to handle media key.
  * @hide
  */
-interface IOnMediaKeyListener {
+oneway interface IOnMediaKeyListener {
     void onMediaKey(in KeyEvent event, in ResultReceiver result);
 }