diff --git a/beets/library.py b/beets/library.py
index 302c8d37a..4e8eed001 100644
--- a/beets/library.py
+++ b/beets/library.py
@@ -494,6 +494,7 @@ class Item(LibModel):
         'mb_releasetrackid':    types.STRING,
         'trackdisambig':        types.STRING,
         'albumtype':            types.STRING,
+        'albumtypes':           types.STRING,
         'label':                types.STRING,
         'acoustid_fingerprint': types.STRING,
         'acoustid_id':          types.STRING,