diff --git a/mopidy_subidy/uri.py b/mopidy_subidy/uri.py
index 55e99ba..667e584 100644
--- a/mopidy_subidy/uri.py
+++ b/mopidy_subidy/uri.py
@@ -4,7 +4,7 @@ SONG = 'song'
 ARTIST = 'artist'
 PLAYLIST = 'playlist'
 ALBUM = 'album'
-DIRECTORY='directory'
+DIRECTORY = 'directory'
 PREFIX = 'subidy'
 ROOT = 'root'
 SEARCH = 'search'