diff --git a/tubesync/sync/fields.py b/tubesync/sync/fields.py
index 465f1d2..b96f4cd 100644
--- a/tubesync/sync/fields.py
+++ b/tubesync/sync/fields.py
@@ -48,7 +48,7 @@ class CommaSepChoiceField(models.Field):
         kwargs['possible_choices'] = self.possible_choices
         return name, path, args, kwargs
 
-    def db_type(self, _connection):
+    def db_type(self, connection):
         return 'text'
 
     def get_my_choices(self):