diff --git a/tox.ini b/tox.ini
index 7ed57bc6..1fa21b6a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,4 +3,4 @@ envlist = py27
 
 [py27]
 basepython = python2.7
-commands = unit2 discover
+commands = coverage run --rcfile=./.coveragerc unit2 discover