diff --git a/cloud/cloud b/cloud/cloud
index b02a938..5236dd0 100644
--- a/cloud/cloud
+++ b/cloud/cloud
@@ -1,3 +1,4 @@
+---
 # vim:set ft=yaml:
 wait_for_ip_timeout: 600
 sync_after_install: all
diff --git a/cloud/cloud.profiles b/cloud/cloud.profiles
index 4c7c759..bf89a1d 100644
--- a/cloud/cloud.profiles
+++ b/cloud/cloud.profiles
@@ -1,3 +1,4 @@
+---
 # vim:set ft=yaml:
 scaleway-xsmall-arm-ubuntu-16:
   provider: scaleway-paris
diff --git a/cloud/cloud.providers b/cloud/cloud.providers
index 6ef87ee..516d4a6 100644
--- a/cloud/cloud.providers
+++ b/cloud/cloud.providers
@@ -1,3 +1,4 @@
+---
 # vim:set ft=yaml:
 scaleway-paris:
   access_key:
diff --git a/cloud/scaleway/scw01-ams.paulbsd.com b/cloud/scaleway/scw01-ams.paulbsd.com
index f55c1e0..6f3d9df 100644
--- a/cloud/scaleway/scw01-ams.paulbsd.com
+++ b/cloud/scaleway/scw01-ams.paulbsd.com
@@ -1,3 +1,4 @@
+---
 scaleway-external:
   - scw01-ams.paulbsd.com:
       minion:
diff --git a/cloud/scaleway/scw_lamp.map b/cloud/scaleway/scw_lamp.map
index 8bc2182..063e8e7 100644
--- a/cloud/scaleway/scw_lamp.map
+++ b/cloud/scaleway/scw_lamp.map
@@ -1,3 +1,4 @@
+---
 scaleway-lamp:
   - lamp1:
       minion:
diff --git a/cloud/scaleway/scw_web.map b/cloud/scaleway/scw_web.map
index d375c2c..b82fa7d 100644
--- a/cloud/scaleway/scw_web.map
+++ b/cloud/scaleway/scw_web.map
@@ -1,3 +1,4 @@
+---
 scaleway-xsmall-x86-ubuntu-16:
   - web1:
       minion: