diff --git a/tox.ini b/tox.ini
index 04ad98a6..8c02341f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,7 +19,7 @@ deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/up
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands =
-  python manage.py test heat_dashboard.test --settings=heat_dashboard.test.settings --exclude-tag integration
+  python manage.py test {posargs:heat_dashboard.test} --settings=heat_dashboard.test.settings --exclude-tag integration
 
 [testenv:integration]
 # Run integration tests only
@@ -29,7 +29,7 @@ setenv =
   INTEGRATION_TESTS=1
   SELENIUM_HEADLESS=1
   HORIZON_INTEGRATION_TESTS_CONFIG_FILE=heat_dashboard/test/integration/horizon.conf
-commands = python manage.py test heat_dashboard.test.integration --settings=heat_dashboard.test.settings --tag integration
+commands = python manage.py test {posargs:heat_dashboard.test.integration} --settings=heat_dashboard.test.settings --tag integration
 
 [testenv:pep8]
 commands = flake8 {posargs}
@@ -40,7 +40,7 @@ commands = {posargs}
 [testenv:cover]
 commands =
   coverage erase
-  coverage run --source=heat_dashboard {toxinidir}/manage.py test heat_dashboard.test.tests --settings=heat_dashboard.test.settings {posargs}
+  coverage run --source=heat_dashboard {toxinidir}/manage.py test {posargs:heat_dashboard.test.tests} --settings=heat_dashboard.test.settings
   coverage xml
   coverage html