diff --git a/tox.ini b/tox.ini
index e3fd915..a8cd424 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,7 @@ envlist = py26, py27, pypy, py26requests, py27requests, pypyrequests
 
 [testenv]
 commands =
-    py.test
+    python setup.py test
 deps =
     pytest
     PyYAML