diff --git a/metadata/layout.conf b/metadata/layout.conf
index e957371..87d7e5d 100644
--- a/metadata/layout.conf
+++ b/metadata/layout.conf
@@ -1,3 +1,3 @@
-# We want eclasses from the gentoo repo. This happens by default with portage,
-# but pkgcore complains if we don't spell it out explicitly.
 masters = gentoo
+use-manifests = strict
+profile-formats = portage-2