diff --git a/tox.ini b/tox.ini
index ba54220..466b7b6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ setenv =
 commands =
     #nosetests --with-coverage --cover-erase --cover-package=pagure --with-pagureperf {posargs}
     #nosetests {posargs}
-    {toxinidir}/runtests.py run {posargs}
+    python {toxinidir}/runtests.py run {posargs}
 
 
 [testenv:timetests]