diff --git a/classes/cluster/os-ha-ovs/openstack/init.yml b/classes/cluster/os-ha-ovs/openstack/init.yml
index 2f74ab9..da3da94 100644
--- a/classes/cluster/os-ha-ovs/openstack/init.yml
+++ b/classes/cluster/os-ha-ovs/openstack/init.yml
@@ -123,6 +123,7 @@
     horizon_identity_host: ${_param:cluster_vip_address}
     horizon_identity_encryption: none
     horizon_identity_version: 2
+    nginx_proxy_openstack_api_proxy_host: ${_param:cluster_vip_address}
   linux:
     network:
       host: