diff --git a/scripts/change_url b/scripts/change_url
index c9a4230..f00a925 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -65,11 +65,19 @@ ynh_abort_if_errors
 #=================================================
 # CHECK PATHS SYNTAX
 #=================================================
+ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..." --weight=1
 
-test -n "$old_path" || old_path="/"
-test -n "$new_path" || new_path="/"
-new_path=$(ynh_normalize_url_path $new_path)
-old_path=$(ynh_normalize_url_path $old_path)
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+  # Remove the new domain config file, the remove script won't do it as it doesn't know yet its location.
+  ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+
+  # Restore it if the upgrade fails
+  ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
 #=================================================
 # CHECK WHICH PARTS SHOULD BE CHANGED