diff --git a/graphene_django/converter.py b/graphene_django/converter.py
index 6b687fe..64bf341 100644
--- a/graphene_django/converter.py
+++ b/graphene_django/converter.py
@@ -198,9 +198,11 @@ def convert_field_to_list_or_connection(field, registry=None):
 
             return DjangoConnectionField(_type, description=description)
 
-        return DjangoListField(_type,
-                               required=True,  # A Set is always returned, never None.
-                               description=description)
+        return DjangoListField(
+            _type,
+            required=True,  # A Set is always returned, never None.
+            description=description,
+        )
 
     return Dynamic(dynamic_type)