diff --git a/metadata/service/server/cluster.yml b/metadata/service/server/cluster.yml
index 4be3b3d..cfb1cbc 100644
--- a/metadata/service/server/cluster.yml
+++ b/metadata/service/server/cluster.yml
@@ -20,6 +20,7 @@
       admin_email: root@domain.com
       bind:
         address: ${_param:cluster_local_address}
+        protocol: ${_param:cluster_internal_protocol}
         private_address: ${_param:cluster_vip_address}
         private_port: 35357
         private_protocol: ${_param:cluster_internal_protocol}