diff --git a/setup.py b/setup.py
index 4b0abde..795918e 100644
--- a/setup.py
+++ b/setup.py
@@ -49,7 +49,7 @@ def read(*rnames):
           'Natural Language :: English',
           'Operating System :: OS Independent',
           'Topic :: Internet :: WWW/HTTP',
-          'Framework :: Zope3'],
+          'Framework :: Zope :: 3'],
       url='http://github.com/zopefoundation/zope.untrustedpython',
       license='ZPL 2.1',
       packages=find_packages('src'),