diff --git a/dom/media/webaudio/test/test_mediaStreamAudioDestinationNode.html b/dom/media/webaudio/test/test_mediaStreamAudioDestinationNode.html
index dbab11e6d929..5aa1a7910506 100644
--- a/dom/media/webaudio/test/test_mediaStreamAudioDestinationNode.html
+++ b/dom/media/webaudio/test/test_mediaStreamAudioDestinationNode.html
@@ -34,9 +34,15 @@ addLoadEvent(function() {
       is(elem.played.length, 1, "should have a played interval");
       is(elem.played.start(0), 0, "should have played immediately");
       isnot(elem.played.end(0), 0, "should have played for a non-zero interval");
-      SimpleTest.finish();
+
+      // This will end the media element.
+      dest.stream.getTracks()[0].stop();
     }, 2000);
   };
+  elem.onended = function() {
+    ok(true, "media element ended after destination track.stop()");
+    SimpleTest.finish();
+  };
 
   source.start(0);
   elem.play();