diff --git a/SUMMARY.md b/SUMMARY.md
index d0c6567..b8ccb5b 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -45,7 +45,7 @@
    * [5.3. Middleware中间件](ch5-web/ch5-03-middleware.md)
    * [5.4. Validator请求校验](ch5-web/ch5-04-validator.md)
    * [5.5. Database和数据库打交道](ch5-web/ch5-05-database.md)
-   * [# 5.6. Ratelimit 服务流量限制](ch5-web/ch5-06-ratelimit.md)
+   * [5.6. Ratelimit 服务流量限制](ch5-web/ch5-06-ratelimit.md)
    * [5.7. Layout大型web项目分层](ch5-web/ch5-07-layout-of-web-project.md)
    * [5.9. 灰度发布和 A/B test](ch5-web/ch5-09-gated-launch.md)
    * [5.11. Load-balance负载均衡](ch5-web/ch5-11-load-balance.md)