1 files changed, 2 insertions, 3 deletions

diff --git a/src/mailman/model/user.py b/src/mailman/model/user.py
index 15ed9170f..a723df44e 100644
--- a/src/mailman/model/user.py
+++ b/src/mailman/model/user.py
@@ -28,7 +28,7 @@ from storm.locals import (
     DateTime, Int, RawStr, Reference, ReferenceSet, Unicode)
 from storm.properties import UUID
 from zope.event import notify
-from zope.interface import implements
+from zope.interface import implementer
 
 from mailman.database.model import Model
 from mailman.database.transaction import dbconnection
@@ -47,11 +47,10 @@ uid_factory = UniqueIDFactory(context='users')
 
 
 
+@implementer(IUser)
 class User(Model):
     """Mailman users."""
 
-    implements(IUser)
-
     id = Int(primary=True)
     display_name = Unicode()
     _password = RawStr(name='password')