diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 3d8b31f98..323681960 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -967,7 +967,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                         video_id, note=False,
                         errnote='unable to download video info webpage')
                     get_video_info = compat_parse_qs(video_info_webpage)
-                    add_dash_mpd(get_video_info)
+                    if get_video_info.get('use_cipher_signature') != ['True']:
+                        add_dash_mpd(get_video_info)
                     if not video_info:
                         video_info = get_video_info
                     if 'token' in get_video_info: