diff --git a/tox.ini b/tox.ini
index 90131958..184ba3a3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -106,7 +106,7 @@ deps =
     {[testenv:ansible]deps}
 setenv =
     {[testenv]setenv}
-    ANSIBLE_PARAMETERS=-e neutron_install_method=distro
+    ANSIBLE_PARAMETERS=-e @{toxinidir}/tests/common/test-distro_install-vars.yml
 commands =
     bash -c "{toxinidir}/tests/common/test-ansible-functional.sh"