diff --git a/xos-core/Chart.yaml b/xos-core/Chart.yaml
index 613d0e7..b9b1487 100644
--- a/xos-core/Chart.yaml
+++ b/xos-core/Chart.yaml
@@ -1,3 +1,4 @@
+---
 # Copyright 2017-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");