diff --git a/scripts/upgrade b/scripts/upgrade
index ffd7bea..90107e0 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,6 +24,7 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 admin=$(ynh_app_setting_get --app=$app --key=admin)
 is_public=$(ynh_app_setting_get --app=$app --key=is_public)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+registration=$(ynh_app_setting_get --app=$app --key=registration)
 database=$(ynh_app_setting_get --app=$app --key=database)
 random_key=$(ynh_app_setting_get --app=$app --key=random_key)