diff --git a/setup.py b/setup.py
index 06e9003..fcadd84 100755
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,7 @@ setup(
         'Topic :: Utilities',
 
         # Pick your license as you wish (should match "license" above)
-        'License :: OSI Approved :: GNU Affero General Public License v3'
+        'License :: OSI Approved :: GNU Affero General Public License v3',
 
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate wheter you support Python2, Python 3 or both.