diff --git a/youtube_dl/extractor/mtv.py b/youtube_dl/extractor/mtv.py
index af9490cccf..228b42d2b9 100644
--- a/youtube_dl/extractor/mtv.py
+++ b/youtube_dl/extractor/mtv.py
@@ -158,6 +158,9 @@ def _real_extract(self, url):
             if mgid.endswith('.swf'):
                 mgid = mgid[:-4]
         except RegexNotFoundError:
+            mgid = None
+
+        if mgid is None or ':' not in mgid:
             mgid = self._search_regex(
                 [r'data-mgid="(.*?)"', r'swfobject.embedSWF\(".*?(mgid:.*?)"'],
                 webpage, u'mgid')