diff --git a/tox.ini b/tox.ini
index 3ab6669..905a258 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,25 +5,25 @@
 
 [tox]
 envlist = 
-    py26
-    py27
-    py33
-    py34
-    pypy
-    py26requests
-    py27requests
-    py34requests
-    pypyrequests
-    py26oldrequests
-    py27oldrequests
-    py33oldrequests
-    py34oldrequests
-    pypyoldrequests
-    py26httplib2
-    py27httplib2
-    py33httplib2
-    py34httplib2
-    pypyhttplib2
+    py26,
+    py27,
+    py33,
+    py34,
+    pypy,
+    py26requests,
+    py27requests,
+    py34requests,
+    pypyrequests,
+    py26oldrequests,
+    py27oldrequests,
+    py33oldrequests,
+    py34oldrequests,
+    pypyoldrequests,
+    py26httplib2,
+    py27httplib2,
+    py33httplib2,
+    py34httplib2,
+    pypyhttplib2,
 
 [testenv]
 commands =