diff --git a/sdk_container/src/third_party/coreos-overlay/metadata/layout.conf b/sdk_container/src/third_party/coreos-overlay/metadata/layout.conf
index aa927d1474..3320dad4b6 100644
--- a/sdk_container/src/third_party/coreos-overlay/metadata/layout.conf
+++ b/sdk_container/src/third_party/coreos-overlay/metadata/layout.conf
@@ -2,3 +2,4 @@ masters = portage-stable
 thin-manifests = true
 use-manifests = true
 cache-format = md5-dict
+profile-formats = portage-2