diff --git a/MailServerInstall.md b/MailServerInstall.md
index 9d30b96..99dc247 100644
--- a/MailServerInstall.md
+++ b/MailServerInstall.md
@@ -47,14 +47,14 @@ smtp inet n - - - - smtpd
 
 ### Edition des 5 fichiers de configuration suivants:
 * Contenu de `mysql-virtual_domaines.cf`
-    ~~~~txt
+    ~~~~sql
         hosts = 127.0.0.1
-            user = postfix
-                password = Mot de passe Mysql Postfix
-                    dbname = postfix
-                        select_field = 'virtual'
-                            table = domaines
-                                where_field = domaine
-                                    additional_conditions = AND etat=1
+        user = postfix
+        password = Mot de passe Mysql Postfix
+        dbname = postfix
+        select_field = 'virtual'
+        table = domaines
+        where_field = domaine
+        additional_conditions = AND etat=1
     ~~~~