diff --git a/setup.py b/setup.py
index d8dc20943..bde7d5219 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,8 @@ def main():
                      'Topic :: Software Development :: Testing',
                      'Topic :: Software Development :: Libraries',
                      'Topic :: Utilities',
-                     'Programming Language :: Python'],
+                     'Programming Language :: Python',
+                     'Programming Language :: Python :: 3'],
         packages=['py',
                   'py._plugin',
                   'py._cmdline',