diff --git a/modoboa_installer/scripts/files/dovecot/conf.d/10-master.conf b/modoboa_installer/scripts/files/dovecot/conf.d/10-master.conf
index 4757a4e..6f35a7c 100644
--- a/modoboa_installer/scripts/files/dovecot/conf.d/10-master.conf
+++ b/modoboa_installer/scripts/files/dovecot/conf.d/10-master.conf
@@ -94,7 +94,7 @@ service auth {
   # permissions (e.g. 0777 allows everyone full permissions).
   unix_listener auth-userdb {
     #mode = 0666
-    #user = 
+    user = vmail
     #group = 
   }