1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 3dae3b8..3913866 100644
--- a/setup.py
+++ b/setup.py
@@ -128,6 +128,7 @@ setup(name='zope.security',
           'Programming Language :: Python :: 3.2',
           'Programming Language :: Python :: 3.3',
           'Programming Language :: Python :: Implementation :: CPython',
+          'Programming Language :: Python :: Implementation :: PyPy',
           'Natural Language :: English',
           'Operating System :: OS Independent',
           'Topic :: Internet :: WWW/HTTP',