From fcdfd16e44d9e5ef0f15ac2b87ae0b83efe00741 Mon Sep 17 00:00:00 2001
From: huangzhhui <huangzhwork@gmail.com>
Date: Thu, 10 Oct 2019 18:25:23 +0800
Subject: [PATCH] Fixed typo

---
 doc/zh/coroutine.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/zh/coroutine.md b/doc/zh/coroutine.md
index 17a0ad5d7..2dcb290cc 100644
--- a/doc/zh/coroutine.md
+++ b/doc/zh/coroutine.md
@@ -259,11 +259,11 @@ $foo = Context::has('foo');
 
 ```php
 <?php
-use Hyperf\HttpServer\Contract\RequestInterface;
+use Psr\Http\Message\ServerRequestInterface;
 use Hyperf\Utils\Context;
 
 // 从协程上下文取出 $request 对象并设置 key 为 foo 的 Header，然后再保存到协程上下文中
-$request = Context::override(RequestInterface::class, function (RequestInterface $request) {
+$request = Context::override(ServerRequestInterface::class, function (ServerRequestInterface $request) {
     return $request->withAddedHeader('foo', 'bar');
 });
 ```
\ No newline at end of file