diff --git a/playbook.yml b/playbook.yml
index 6bfa42b..a2c09f9 100644
--- a/playbook.yml
+++ b/playbook.yml
@@ -1,3 +1,4 @@
+---
 - hosts: pp.visio.nereide.fr
   roles:
     - role: common
diff --git a/roles/auth/tasks/main.yml b/roles/auth/tasks/main.yml
index 08f3e9b..cc09d6c 100644
--- a/roles/auth/tasks/main.yml
+++ b/roles/auth/tasks/main.yml
@@ -1,3 +1,4 @@
+---
 - name: Conf Jitsi - Activation de l'authentification prosody 1/2
   replace:
     path: /etc/prosody/conf.d/{{ inventory_hostname }}.cfg.lua
@@ -35,4 +36,4 @@
   with_items:
     - prosody
     - jicofo
-    - jitsi-videobridge2
\ No newline at end of file
+    - jitsi-videobridge2
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index f1df7ad..31a9306 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -1,39 +1,49 @@
+---
 - name: Ajout de la clé GPG pour le depot jitsi
   apt_key:
     url: https://download.jitsi.org/jitsi-key.gpg.key
+
 - name: Ajout du depot jitsi
   apt_repository:
     repo: deb https://download.jitsi.org stable/
+
 - name: apt update
   apt:
     update_cache: true
+
 - name: Application du hostname avant installation
   debconf:
     name: jitsi-meet-web-config
     question: jitsi-videobridge/jvb-hostname
     value: '{{ inventory_hostname }}'
     vtype: string
+
 - name: On veut un certificat autogénéré
   debconf:
     name: jitsi-meet-web-config
     question: jitsi-meet/cert-choice
     value: "Generate a new self-signed certificate (You will later get a chance to obtain a Let's encrypt certificate)"
     vtype: string
+
 - name: installation de jitsi
   apt:
     name: jitsi-meet
+
 - name: Configuration de let's encrypt
   script: files/jitsi-letsencrypt.sh > jitsi-letsencrypt.log
+
 - name: Conf Jitsi - UI en fr
   lineinfile:
     path: /etc/jitsi/meet/{{ inventory_hostname }}-config.js
     insertafter: "[^?]// defaultLanguage: 'en'"
     line: "    defaultLanguage: 'fr',"
+
 - name: Conf Jitsi - webcam en qualité medium par defaut 1/2
   lineinfile:
     path: /etc/jitsi/meet/{{ inventory_hostname }}-config.js
     insertafter: "[^?]// resolution: 720"
     line: "    resolution: 360,"
+
 - name:  Conf Jitsi - webcam en qualité medium par defaut 2/2
   blockinfile:
     path: /etc/jitsi/meet/{{ inventory_hostname }}-config.js
@@ -50,11 +60,13 @@
             }
           }        
         },
+
 - name: Conf Jitsi - Désactive l'effet floutage d'arrière plan
   replace:
     path: /usr/share/jitsi-meet/interface_config.js
     regexp: "'videobackgroundblur',"
     replace: ""
+
 - name: Conf Jitsi - Active une alerte pour les utilisateurs de Firefox
   replace:
     path: /usr/share/jitsi-meet/interface_config.js