diff --git a/tox.ini b/tox.ini
index 12fb035..13fd5ba 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,8 @@ envlist =
     py26-django-14,
     py27-django-14,
     {py26,py27,py32,py33,py34,pypy}-django-{15,16},
-    {py27,py32,py33,py34,pypy}-django-{17,master}
+    {py27,py32,py33,py34,pypy}-django-17
+    {py27,py33,py34,pypy}-django-master
 
 [testenv]
 basepython =