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-rw-r--r--youtube_dl/extractor/youtube.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 2c44f36a5..225e2b7f4 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -508,6 +508,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
sub_lang_list = {}
for l in lang_list:
lang = l[1]
+ if lang in sub_lang_list:
+ continue
params = compat_urllib_parse.urlencode({
'lang': lang,
'v': video_id,