diff --git a/client/site_tests/video_WebRtcPerf/loopback.html b/client/site_tests/video_WebRtcPerf/loopback.html
index 68fbd5b..edf13c5 100644
--- a/client/site_tests/video_WebRtcPerf/loopback.html
+++ b/client/site_tests/video_WebRtcPerf/loopback.html
@@ -20,7 +20,8 @@
         }
       }
     },
-    gotLocalStream);
+    gotLocalStream,
+    gotError);
 }
 
 function gotLocalStream(stream) {
@@ -38,6 +39,10 @@
   localPeerConnection.createOffer(gotLocalDescription);
 }
 
+function gotError(error) {
+  console.log("navigator.getUserMedia error: ", error);
+}
+
 function gotRemoteStream(event) {
   remoteVideo.src = URL.createObjectURL(event.stream);
 }