diff --git a/django/db/models/fields/subclassing.py b/django/db/models/fields/subclassing.py
index 759373e4d0..b8d1cd6710 100644
--- a/django/db/models/fields/subclassing.py
+++ b/django/db/models/fields/subclassing.py
@@ -63,8 +63,8 @@ class LegacyConnection(type):
     A metaclass to normalize arguments give to the get_db_prep_* and db_type
     methods on fields.
     """
-    def __new__(cls, names, bases, attrs):
-        new_cls = super(LegacyConnection, cls).__new__(cls, names, bases, attrs)
+    def __new__(cls, name, bases, attrs):
+        new_cls = super(LegacyConnection, cls).__new__(cls, name, bases, attrs)
         for attr in ('db_type', 'get_db_prep_save'):
             setattr(new_cls, attr, call_with_connection(getattr(new_cls, attr)))
         for attr in ('get_db_prep_lookup', 'get_db_prep_value'):
@@ -76,8 +76,8 @@ class SubfieldBase(LegacyConnection):
     A metaclass for custom Field subclasses. This ensures the model's attribute
     has the descriptor protocol attached to it.
     """
-    def __new__(cls, base, name, attrs):
-        new_class = super(SubfieldBase, cls).__new__(cls, base, name, attrs)
+    def __new__(cls, name, bases, attrs):
+        new_class = super(SubfieldBase, cls).__new__(cls, name, bases, attrs)
         new_class.contribute_to_class = make_contrib(
             new_class, attrs.get('contribute_to_class')
         )