1 files changed, 1 insertions, 1 deletions
diff --git a/dom/media/test/test_mediarecorder_record_changing_video_resolution.html b/dom/media/test/test_mediarecorder_record_changing_video_resolution.html
index d6354ee5a1..b4e3a6a3fb 100644
--- a/dom/media/test/test_mediarecorder_record_changing_video_resolution.html
+++ b/dom/media/test/test_mediarecorder_record_changing_video_resolution.html
@@ -70,7 +70,7 @@ function startTest() {
     video.src = URL.createObjectURL(blob);
     video.preload = "metadata";
 
-    video.onerror = err => {
+    video.onerror = () => {
       ok(false, "Should be able to play the recording. Got error. code=" + video.error.code);
       SimpleTest.finish();
     };