diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index b3c733e..612dff9 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -2,6 +2,7 @@
 - heat
 classes:
 - service.heat.support
+- service.heat.file_permissions
 parameters:
   _param:
     heat_client_default_endpoint_type: internalURL