diff --git a/keystone/client/service/designate.yml b/keystone/client/service/designate.yml
index e11984e..4d95b2e 100644
--- a/keystone/client/service/designate.yml
+++ b/keystone/client/service/designate.yml
@@ -1,4 +1,6 @@
 parameters:
+  _param:
+    cluster_public_protocol: https
   keystone:
     client:
       server:
@@ -17,7 +19,7 @@
           endpoints:
             - region: ${_param:openstack_region}
               public_address: ${_param:cluster_public_host}
-              public_protocol: https
+              public_protocol: ${_param:cluster_public_protocol}
               public_port: 9001
               public_path: '/'
               internal_address: ${_param:designate_service_host}