diff --git a/setup.py b/setup.py
index b5172792..7d21c8a4 100755
--- a/setup.py
+++ b/setup.py
@@ -67,7 +67,7 @@ setup(
         ],
     extras_require={
         ':python_version=="2.7"': [
-            'enum34'
+            'enum34',
             "lockfile",
             'dict.sorted',
         ]