1 files changed, 1 insertions, 1 deletions
diff --git a/dom/media/test/test_mediarecorder_record_downsize_resolution.html b/dom/media/test/test_mediarecorder_record_downsize_resolution.html
index f9422a3897..5e2fbd13c1 100644
--- a/dom/media/test/test_mediarecorder_record_downsize_resolution.html
+++ b/dom/media/test/test_mediarecorder_record_downsize_resolution.html
@@ -64,7 +64,7 @@ function startTest() {
     var video = document.createElement("video");
     video.id = "recorded-video";
     video.src = URL.createObjectURL(blob);
-    video.onerror = err => {
+    video.onerror = () => {
       ok(false, "Should be able to play the recording. Got error. code=" + video.error.code);
       SimpleTest.finish();
     };