X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fextractor%2Fteachingchannel.py;h=e89759714e6e3cea3da8a7007df838618f6f1cc1;hb=56667d622c3f6e7594a04f8cd5f4371875940725;hp=d14d93e3ab1ae87902dc275e1208964a86b6b840;hpb=4315f74fa8e97ca1fdd1fe919f777b3942da2028;p=youtube-dl

diff --git a/youtube_dl/extractor/teachingchannel.py b/youtube_dl/extractor/teachingchannel.py
index d14d93e3a..e89759714 100644
--- a/youtube_dl/extractor/teachingchannel.py
+++ b/youtube_dl/extractor/teachingchannel.py
@@ -7,7 +7,7 @@ from .ooyala import OoyalaIE
 
 
 class TeachingChannelIE(InfoExtractor):
-    _VALID_URL = r'https?://www\.teachingchannel\.org/videos/(?P<title>.+)'
+    _VALID_URL = r'https?://(?:www\.)?teachingchannel\.org/videos/(?P<title>.+)'
 
     _TEST = {
         'url': 'https://www.teachingchannel.org/videos/teacher-teaming-evolution',