diff --git a/modules/jenkins/files/slave_scripts/run-tox.sh b/modules/jenkins/files/slave_scripts/run-tox.sh
index 28da76576f..7337fb3a6a 100755
--- a/modules/jenkins/files/slave_scripts/run-tox.sh
+++ b/modules/jenkins/files/slave_scripts/run-tox.sh
@@ -25,6 +25,8 @@ venv=py$version
 export NOSE_WITH_XUNIT=1
 export NOSE_WITH_HTML_OUTPUT=1
 export NOSE_HTML_OUT_FILE='nose_results.html'
+export TMPDIR=`/bin/mktemp -d`
+trap "rm -rf $TMPDIR" EXIT
 
 /usr/local/jenkins/slave_scripts/jenkins-oom-grep.sh pre