diff --git a/host_vars/bt.dmz.mateu.be.yml b/host_vars/bt.dmz.mateu.be.yml
index 2a3d8e0..8dc080c 100644
--- a/host_vars/bt.dmz.mateu.be.yml
+++ b/host_vars/bt.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 sub_login: !vault |
           $ANSIBLE_VAULT;1.1;AES256
           62323733666661326134366639353164613864383832613735366530343764663164616364363865
@@ -26,4 +28,3 @@ transmission_pass: !vault |
           35616537346334346637303638366462333062393237376533633265363437333136313337326461
           3861383133613763310a353563383237303434666637346263636161313265653033643234633162
           31613932356364396566626334326237356339633734343763653161353432613335
-
diff --git a/host_vars/munin.dmz.mateu.be.yml b/host_vars/munin.dmz.mateu.be.yml
index 1577682..c09c976 100644
--- a/host_vars/munin.dmz.mateu.be.yml
+++ b/host_vars/munin.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 mikrotik_unitary_scripts:
   - mikrotikcpu_
   - mikrotikmemory_
diff --git a/host_vars/ror.dmz.mateu.be.yml b/host_vars/ror.dmz.mateu.be.yml
index 35847c2..db52ade 100644
--- a/host_vars/ror.dmz.mateu.be.yml
+++ b/host_vars/ror.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 scootaloo_twitter_consumer_key: !vault |
           $ANSIBLE_VAULT;1.1;AES256
           64626338346364633532646164666566623765633634396563656237623535343730346332313536
diff --git a/host_vars/web1.dmz.mateu.be.yml b/host_vars/web1.dmz.mateu.be.yml
index 3a4ae78..0858a0b 100644
--- a/host_vars/web1.dmz.mateu.be.yml
+++ b/host_vars/web1.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 mariadb_root_pass: !vault |
           $ANSIBLE_VAULT;1.1;AES256
           66643966366639636466333561363734623563323936613063623133323466393630393135636238
diff --git a/host_vars/web2.dmz.mateu.be.yml b/host_vars/web2.dmz.mateu.be.yml
index 5dc7553..95024ea 100644
--- a/host_vars/web2.dmz.mateu.be.yml
+++ b/host_vars/web2.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 mariadb_root_pass: !vault |
           $ANSIBLE_VAULT;1.1;AES256
           31613236623530306638633935303936393634313565333932373831626161316438626439303165
diff --git a/host_vars/web3.dmz.mateu.be.yml b/host_vars/web3.dmz.mateu.be.yml
index a2543a1..34ee6cd 100644
--- a/host_vars/web3.dmz.mateu.be.yml
+++ b/host_vars/web3.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 mariadb_root_pass: !vault |
           $ANSIBLE_VAULT;1.1;AES256
           66613630653961396639336136333837343866646263353135303233383336356166663466623438
diff --git a/host_vars/web4.dmz.mateu.be.yml b/host_vars/web4.dmz.mateu.be.yml
index 07b465b..da2f5bb 100644
--- a/host_vars/web4.dmz.mateu.be.yml
+++ b/host_vars/web4.dmz.mateu.be.yml
@@ -1,3 +1,5 @@
+---
+
 mariadb_root_pass: !vault |
           $ANSIBLE_VAULT;1.1;AES256
           36333636323539303936666138623630663562336539326562336132623663363865656431386630