diff --git a/beets/dbcore/db.py b/beets/dbcore/db.py
index 07b0e9a45..19dd720d9 100644
--- a/beets/dbcore/db.py
+++ b/beets/dbcore/db.py
@@ -201,7 +201,8 @@ class Model(object):
         """
         if not self._db:
             raise ValueError(
-                u'{0} has no database'.format(type(self).__name__))
+                u'{0} has no database'.format(type(self).__name__)
+            )
         if need_id and not self.id:
             raise ValueError(u'{0} has no id'.format(type(self).__name__))