diff --git a/.gitignore b/.gitignore
index ff9d662..4ac253f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,6 +26,7 @@ pip-log.txt
 .tox
 nosetests.xml
 .testrepository
+.stestr
 
 # Translations
 *.mo
diff --git a/tox.ini b/tox.ini
index 6947aad..b29ab21 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,7 @@ deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/requirements.txt
-commands = python setup.py testr --slowest --testr-args='{posargs}'
+commands = stestr run --slowest {posargs}
 
 [testenv:py27]
 basepython = python2.7