diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py
index 93b6ca54d..29d7a3106 100755
--- a/youtube_dl/YoutubeDL.py
+++ b/youtube_dl/YoutubeDL.py
@@ -1836,7 +1836,7 @@ def _format_note(self, fdict):
         if fdict.get('language'):
             if res:
                 res += ' '
-            res += '[%s]' % fdict['language']
+            res += '[%s] ' % fdict['language']
         if fdict.get('format_note') is not None:
             res += fdict['format_note'] + ' '
         if fdict.get('tbr') is not None: