diff --git a/keystone/client/v3/service/tacker.yml b/keystone/client/v3/service/tacker.yml
index bddca05..4d4396e 100644
--- a/keystone/client/v3/service/tacker.yml
+++ b/keystone/client/v3/service/tacker.yml
@@ -8,6 +8,7 @@
         v3:
           users:
             tacker:
+              name: ${_param:keystone_tacker_username}
               password: ${_param:keystone_tacker_password}
               email: ${_param:admin_email}
               options: ${_param:openstack_service_user_options}