--- WSGIProxy2-0.5.1/tox.ini.orig
+++ WSGIProxy2-0.5.1/tox.ini
@@ -4,7 +4,7 @@
 [testenv]
 changedir={toxinidir}
 commands =
-  {envbindir}/pytest []
+  python -m pytest []
 deps =
   git+git://github.com/Pylons/webtest.git
   requests