diff --git a/setup.py b/setup.py
index 1291dfe2984c228a1c21b6d89a6d3c8aab7f81df..f6134517457efd69b448f950f064da1983685e66 100644
--- a/setup.py
+++ b/setup.py
@@ -30,6 +30,7 @@ setup(
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
         'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
         'Topic :: Multimedia :: Graphics',
         'Topic :: Software Development :: Libraries',