diff --git a/classes/cluster/os-ha-contrail-40/openstack/compute.yml b/classes/cluster/os-ha-contrail-40/openstack/compute.yml
index 6f677d4..fa0fade 100644
--- a/classes/cluster/os-ha-contrail-40/openstack/compute.yml
+++ b/classes/cluster/os-ha-contrail-40/openstack/compute.yml
@@ -32,6 +32,7 @@
       interface:
         ens4:
           enabled: true
+          ipflush_onchange: true
           type: eth
           proto: manual
           pre_up_cmds: