diff --git a/setup.py b/setup.py
index 4301823c..5eb50a30 100644
--- a/setup.py
+++ b/setup.py
@@ -63,7 +63,7 @@ if __name__ == '__main__':
             'Programming Language :: Python :: 3.3',
             'Programming Language :: Python :: 3.4',
             'Programming Language :: Python :: Implementation :: CPython',
-        #     'Programming Language :: Python :: Implementation :: PyPy',
+            'Programming Language :: Python :: Implementation :: PyPy',
             'Topic :: Software Development',
             'Topic :: Software Development :: Libraries',
             'Topic :: Software Development :: Libraries :: Python Modules',