diff --git a/scripts/upgrade b/scripts/upgrade
index b059880..3d0726b 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -44,7 +44,7 @@ fi
 if [ ! -f "$data_dir/data/config.local.user.php" ]; then
   ynh_add_config --template="config.local.user.php" --destination="$data_dir/data/config.local.user.php"
   chmod 650 "$data_dir/data/config.local.user.php"
-  chown $app:$app "$data_dir/data/config.local.user.php"
+  chown $app:www-data "$data_dir/data/config.local.user.php"
   echo'
 	/**
 	 * Chemin vers le fichier pour des configurations personnelles