diff --git a/test/test_jsinterp.py b/test/test_jsinterp.py
index 3c9650ab6..1ca64dbe5 100644
--- a/test/test_jsinterp.py
+++ b/test/test_jsinterp.py
@@ -501,6 +501,7 @@ class TestJSInterpreter(unittest.TestCase):
         self._test('function f(){return 0.0 << NaN}', 0)
         self._test('function f(){return null << undefined}', 0)
 
+
     def test_negative(self):
         self._test('function f(){return 2    *    -2.0    ;}', -4)
         self._test('function f(){return 2    -    - -2    ;}', 0)
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index bf8cf3c89..6364e3aee 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -3316,7 +3316,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
             return
         return merge_dicts(self.url_result(
             update_url_query('https://www.youtube.com/playlist', {'list': content_id}),
-            ie=YoutubeTabIE, video_id=content_id), {
+            ie=YoutubeTabIE.ie_key(), video_id=content_id), {
                 'title': traverse_obj(view_model, (
                     'metadata', 'lockupMetadataViewModel', 'title', 'content', T(compat_str))),
                 'thumbnails': self._extract_thumbnails(view_model, (