diff --git a/v4/api21/android/support/v4/media/session/MediaSessionCompatApi21.java b/v4/api21/android/support/v4/media/session/MediaSessionCompatApi21.java
index d5f5853..8094391 100644
--- a/v4/api21/android/support/v4/media/session/MediaSessionCompatApi21.java
+++ b/v4/api21/android/support/v4/media/session/MediaSessionCompatApi21.java
@@ -164,7 +164,8 @@
 
         @Override
         public boolean onMediaButtonEvent(Intent mediaButtonIntent) {
-            return mCallback.onMediaButtonEvent(mediaButtonIntent);
+            return mCallback.onMediaButtonEvent(mediaButtonIntent)
+                    || super.onMediaButtonEvent(mediaButtonIntent);
         }
 
         @Override