diff --git a/tox.ini b/tox.ini
index cc912eb..637c39a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 envlist=py26,py27,py33,py34,pypy
 
 [testenv]
-commands=py.test --cov rq
+commands=py.test --cov rq {posargs}
 deps=
     pytest
     pytest-cov