diff --git a/examples/playbook.yml b/examples/playbook.yml
index 95c0fb3..eb67de6 100644
--- a/examples/playbook.yml
+++ b/examples/playbook.yml
@@ -1,3 +1,4 @@
+---
 - name: Install haproxy
   hosts: haproxy
   user: root
diff --git a/zuul.d/project.yaml b/zuul.d/project.yaml
index 4e2c3ee..6fa95ea 100644
--- a/zuul.d/project.yaml
+++ b/zuul.d/project.yaml
@@ -1,3 +1,4 @@
+---
 # Copyright 2017, Rackspace US, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");