diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index e639b00..5872e10 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -2,6 +2,7 @@
 - keystone
 classes:
 - service.keystone.support
+- service.keystone.file_permissions
 parameters:
   _param:
     openstack_log_appender: false