diff --git a/scripts/change_url b/scripts/change_url
index 6be7a27..9f8d871 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -49,10 +49,18 @@ rp_validate_assets_path
 # Special case for "/" path_url
 rp_handle_webroot
 
+nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
+
+ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
 ynh_add_nginx_config
 
 # Move file to new domain if domain has changed
-[[ "$old_domain" != "$new_domain" ]] && mv /etc/nginx/conf.d/$old_domain.d/$app.conf /etc/nginx/conf.d/$new_domain.d/$app.conf
+if [[ "$old_domain" != "$new_domain" ]]; then
+    new_nginx_conf_path=/etc/nginx/conf.d/$new_domain.d/$app.conf
+    ynh_delete_file_checksum --file="$nginx_conf_path"
+    mv $nginx_conf_path $new_nginx_conf_path
+    ynh_store_file_checksum --file="$new_nginx_conf_path"
+fi
 
 
 #=================================================