diff --git a/docs/backend-system/core-services/http-router.md b/docs/backend-system/core-services/http-router.md
index 23304f663f..4f1e2284ad 100644
--- a/docs/backend-system/core-services/http-router.md
+++ b/docs/backend-system/core-services/http-router.md
@@ -135,6 +135,7 @@ import {
   createRateLimitMiddleware,
 } from '@backstage/backend-defaults/httpRouter';
 import PromiseRouter from 'express-promise-router';
+import { Handler } from 'express';
 import { createServiceFactory } from '@backstage/backend-plugin-api';
 
 const backend = createBackend();