diff --git a/lib/neutron b/lib/neutron
index f36e564746..c1552e3d06 100644
--- a/lib/neutron
+++ b/lib/neutron
@@ -166,6 +166,7 @@ function configure_neutron_new {
         iniset $NEUTRON_PLUGIN_CONF ml2 type_drivers vxlan
         iniset $NEUTRON_PLUGIN_CONF ml2 mechanism_drivers openvswitch,linuxbridge
         iniset $NEUTRON_PLUGIN_CONF ml2_type_vxlan vni_ranges 1001:2000
+        iniset $NEUTRON_PLUGIN_CONF ml2 extension_drivers port_security
     fi
 
     # Neutron OVS or LB agent