diff --git a/tox.ini b/tox.ini
index 5d6cdb9..21c569b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,7 @@ deps =
      pytest
      mock
      pytest-cov
-commands = py.test -v --cov pylast --cov-report term-missing
+commands = py.test -v --cov pylast --cov-report term-missing {posargs}
 
 [testenv:venv]
 deps = ipdb