diff --git a/devstack-vm-gate.sh b/devstack-vm-gate.sh
index b4e4dbcf..116d6e9b 100755
--- a/devstack-vm-gate.sh
+++ b/devstack-vm-gate.sh
@@ -98,6 +98,12 @@ CINDER_SECURE_DELETE=False
 EOF
 fi
 
+if ["$DEVSTACK_GATE_TEMPEST_COVERAGE" -eq "1" ] ; then
+   cat <<\EOF >>localrc
+EXTRA_OPTS=(backdoor_port=0)
+EOF
+fi
+
 if [ "$DEVSTACK_GATE_POSTGRES" -eq "1" ]; then
         cat <<\EOF >>localrc
 use_database postgresql