X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Futils.py;h=6a3199fb992b72e70b6588d3999e9c6ec0a87890;hb=85750f897293b5a56e6be521f8b0be3eec082899;hp=63f24c0b646635b65f62e1b162dcdebf8e6a72d9;hpb=261f47306c594614edb8a5f0b8f5f3b8a87ce9c0;p=youtube-dl

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 63f24c0b6..6a3199fb9 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1228,7 +1228,7 @@ def unified_timestamp(date_str, day_first=True):
 
 
 def determine_ext(url, default_ext='unknown_video'):
-    if url is None:
+    if url is None or '.' not in url:
         return default_ext
     guess = url.partition('?')[0].rpartition('.')[2]
     if re.match(r'^[A-Za-z0-9]+$', guess):