diff --git a/docs/1.guide/2.event-handler.md b/docs/1.guide/2.event-handler.md
index b189f8bd..25e4b79d 100644
--- a/docs/1.guide/2.event-handler.md
+++ b/docs/1.guide/2.event-handler.md
@@ -80,7 +80,7 @@ app.use(
 
 ```js
 app.use(
-  defineEventHandlers(async (event) => {
+  defineEventHandler(async (event) => {
     return new Promise((resolve) => {
       setTimeout(() => {
         resolve({ url: event.node.req.url });