diff --git a/setup.py b/setup.py
index 02ac5b1..084d82f 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@ def read(*rnames):
           'Natural Language :: English',
           'Operating System :: OS Independent',
           'Topic :: Internet :: WWW/HTTP',
-          'Framework :: Zope3',
+          'Framework :: Zope :: 3',
       ],
       url='https://zopeauthentication.readthedocs.io/',
       license='ZPL 2.1',