diff --git a/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml b/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml
index 10010ae..e206416 100644
--- a/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml
+++ b/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml
@@ -54,7 +54,7 @@
       site:
         nginx_proxy_openstack_web:
           proxy:
-            host: prx
+            host: ${_param:openstack_proxy_address}
         nginx_proxy_openstack_api_heat_cfn:
           enabled: false
   salt: