diff --git a/scripts/upgrade b/scripts/upgrade
index 0f720b9..96c1c3c 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -68,6 +68,8 @@ if [ ! -z $is_public ]; then
 	if [ "$is_public" = "1" ]; then
 		ynh_permission_update --permission "main" --add "visitors"
                 show_warning="1"
+        else
+                show_warning="0"
 	fi
 	ynh_app_setting_delete --app=$app --key=is_public
 fi