diff --git a/beets/mediafile.py b/beets/mediafile.py
index 83d9e3714..a0576d1ec 100644
--- a/beets/mediafile.py
+++ b/beets/mediafile.py
@@ -81,8 +81,6 @@ TYPES = {
     'asf':  'Windows Media',
 }
 
-MP4_TYPES = ('aac', 'alac')
-
 
 # Utility.