diff --git a/youtube_dl/extractor/canvas.py b/youtube_dl/extractor/canvas.py
index e57b72fa8..73d282bb2 100644
--- a/youtube_dl/extractor/canvas.py
+++ b/youtube_dl/extractor/canvas.py
@@ -38,7 +38,7 @@ class CanvasIE(InfoExtractor):
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
-        site_id, video_id = mobj.group('site_id'), mobj.group('id')
+        video_id = mobj.group('id')
 
         token = self._download_json('https://media-services-public.vrt.be/vualto-video-aggregator-web/'
                                     'rest/external/v1/tokens', None, data={},