diff --git a/classes/cluster/virtual-mcp11-ovs-dpdk/openstack/init.yml b/classes/cluster/virtual-mcp11-ovs-dpdk/openstack/init.yml
index 5391d23..83d35b8 100644
--- a/classes/cluster/virtual-mcp11-ovs-dpdk/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-ovs-dpdk/openstack/init.yml
@@ -128,6 +128,7 @@
     mongodb_shared_key: eoTh1AwahlahqueingeejooLughah4tei9feing0eeVaephooDi2li1TaeV1ooth
   linux:
     network:
+      purge_hosts: true
       host:
         prx:
           address: ${_param:openstack_proxy_address}