Fix `str.join' usage
@@ -559,7 +559,7 @@ class DiscogsPlugin(BeetsPlugin):
title = track['title']
if self.config['index_tracks']:
prefix = ', '.join(divisions)
- title = ': '.join(prefix, title)
+ title = ': '.join([prefix, title])
track_id = None
medium, medium_index, _ = self.get_track_index(track['position'])
artist, artist_id = MetadataSourcePlugin.get_artist(
