diff --git a/playbooks/knot.yml b/playbooks/knot.yml
index 2948c16..43b59c3 100755
--- a/playbooks/knot.yml
+++ b/playbooks/knot.yml
@@ -1,5 +1,8 @@
 #!/usr/bin/env ansible-playbook
 ---
+- hosts: all
+  roles: []
+
 # WIP: Deploy authoritative DNS servers
 # - hosts: authoritative_dns
 #   vars:
diff --git a/playbooks/ldap_replica.yml b/playbooks/ldap_replica.yml
index 1dfdbca..d9042a2 100755
--- a/playbooks/ldap_replica.yml
+++ b/playbooks/ldap_replica.yml
@@ -1,5 +1,8 @@
 #!/usr/bin/env ansible-playbook
 ---
+- hosts: all
+  roles: []
+
 # Clone LDAP on local geographic location
 # DON'T DO THIS AS IT RECREATES THE REPLICA
 #- hosts: ldap_replica
diff --git a/playbooks/postfix.yml b/playbooks/postfix.yml
index 1e46561..0f24dc9 100755
--- a/playbooks/postfix.yml
+++ b/playbooks/postfix.yml
@@ -19,4 +19,4 @@
       username: service-user
       password: "{{ vault_serviceuser_passwd }}"
   roles:
-    - re2o-service
+    - re2o_service
diff --git a/playbooks/switchs-manager.yml b/playbooks/switchs-manager.yml
index b2930ec..c8f2a1b 100755
--- a/playbooks/switchs-manager.yml
+++ b/playbooks/switchs-manager.yml
@@ -1,5 +1,8 @@
 #!/usr/bin/env ansible-playbook
 ---
+- hosts: all
+  roles: []
+
 # Deploy Re2o switch service
 # - hosts: switchs-manager.adm.auro.re
 #   vars:
diff --git a/playbooks/unifi.yml b/playbooks/unifi.yml
index a596824..638580e 100755
--- a/playbooks/unifi.yml
+++ b/playbooks/unifi.yml
@@ -1,5 +1,8 @@
 #!/usr/bin/env ansible-playbook
 ---
+- hosts: all
+  roles: []
+
 # Deploy Unifi Controller
 # - hosts: unifi-fleming.adm.auro.re,unifi-pacaterie.adm.auro.re
 #   roles: