diff --git a/docs/2.guide/2.directory-structure/1.server.md b/docs/2.guide/2.directory-structure/1.server.md
index 68e418f4ff..90f5fbd3b6 100644
--- a/docs/2.guide/2.directory-structure/1.server.md
+++ b/docs/2.guide/2.directory-structure/1.server.md
@@ -111,10 +111,12 @@ For example, you can define a custom handler utility that wraps the original han
 **Example:**
 
 ```ts [server/utils/handler.ts]
-import type { EventHandler } from 'h3'
+import type { EventHandler, EventHandlerRequest } from 'h3'
 
-export const defineWrappedResponseHandler = (handler: EventHandler) =>
-  defineEventHandler(async (event) => {
+export const defineWrappedResponseHandler = <T extends EventHandlerRequest, D> (
+  handler: EventHandler<T, D>
+): EventHandler<T, D> =>
+  defineEventHandler<T>(async event => {
     try {
       // do something before the route handler
       const response = await handler(event)