diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index d3168ba..3dadf52 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -450,7 +450,8 @@
      *  none.
      *
      * Returned value:
-     *  handle on audio hardware output
+     *  handle on audio hardware output, or AUDIO_IO_HANDLE_NONE if the
+     *  track needed to be re-created but that failed
      */
             audio_io_handle_t    getOutput() const;