1 files changed, 4 insertions, 4 deletions

diff --git a/src/mailman/model/mime.py b/src/mailman/model/mime.py
index c611aab89..462bb9016 100644
--- a/src/mailman/model/mime.py
+++ b/src/mailman/model/mime.py
@@ -15,9 +15,9 @@
 # You should have received a copy of the GNU General Public License along with
 # GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
 
-"""Module stuff."""
+"""The content filter."""
 
-from __future__ import absolute_import, unicode_literals
+from __future__ import absolute_import, print_function, unicode_literals
 
 __metaclass__ = type
 __all__ = [
@@ -26,7 +26,7 @@ __all__ = [
 
 
 from storm.locals import Int, Reference, Unicode
-from zope.interface import implements
+from zope.interface import implementer
 
 from mailman.database.model import Model
 from mailman.database.types import Enum
@@ -34,9 +34,9 @@ from mailman.interfaces.mime import IContentFilter, FilterType
 
 
 
+@implementer(IContentFilter)
 class ContentFilter(Model):
     """A single filter criteria."""
-    implements(IContentFilter)
 
     id = Int(primary=True)