diff --git a/tox.ini b/tox.ini
index 32536ada7..d2225bded 100644
--- a/tox.ini
+++ b/tox.ini
@@ -103,8 +103,7 @@ commands = {envpython} {toxinidir}/manage.py {posargs}
 commands =
   coverage erase
   coverage run {toxinidir}/manage.py test horizon --settings=horizon.test.settings {posargs}
-  coverage run {toxinidir}/manage.py test openstack_dashboard --settings=openstack_dashboard.test.settings --exclude-dir=openstack_dashboard/test/integration_tests {posargs}
-  coverage combine
+  coverage run -a {toxinidir}/manage.py test openstack_dashboard --settings=openstack_dashboard.test.settings --exclude-dir=openstack_dashboard/test/integration_tests {posargs}
   coverage xml
   coverage html