diff --git a/ceph/rgw/keystone.yml b/ceph/rgw/keystone.yml
index 4340d62..01eda59 100644
--- a/ceph/rgw/keystone.yml
+++ b/ceph/rgw/keystone.yml
@@ -18,3 +18,4 @@
         tenant: ${_param:ceph_radosgw_keystone_project}
         project: ${_param:ceph_radosgw_keystone_project}
         domain: ${_param:ceph_radosgw_keystone_domain}
+        protocol: ${_param:cluster_internal_protocol}