diff --git a/setup.py b/setup.py
index 6acb79c..42c4942 100644
--- a/setup.py
+++ b/setup.py
@@ -77,7 +77,7 @@ def read(fname):
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6"
+        "Programming Language :: Python :: 3.6",
         "Topic :: Internet :: Proxy Servers",
     ],
 )