diff --git a/README.md b/README.md
index 389ee1b..f17f101 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ mediasoup Worker (C++ SFU)
 
 ---
 
-## 项目结构
+## 项目结构：
 
 ```
 EchoChat/