diff --git a/tox.ini b/tox.ini
index 7fe65261c0..94d53b1daf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -73,7 +73,10 @@ commands =
 [testenv:zuul]
 basepython = python2.7
 deps = PyYAML
+whitelist_externals =
+  rm
 commands =
+  rm -rf .test/jenkins-job-builder/.test/new/out
   {toxinidir}/tools/run-layout.sh
   {toxinidir}/tools/layout-checks.py