diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 3f49f3889..752ec24e5 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -287,7 +287,7 @@ class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
                 break
 
             more = self._download_json(
-                'https://youtube.com/%s' % mobj.group('more'), playlist_id,
+                'https://www.youtube.com/%s' % mobj.group('more'), playlist_id,
                 'Downloading page #%s' % page_num,
                 transform_source=uppercase_escape)
             content_html = more['content_html']