diff --git a/tox.ini b/tox.ini
index f183956..4d9c7df 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,7 +18,7 @@
                       rm
 commands =
   find . -type f -name "*.pyc" -delete
-  sh tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 passenv = http_proxy
           HTTP_PROXY
           https_proxy