diff --git a/docs/proposal/23062906-关于开启pgo编译优化.md b/docs/proposal/23062906-关于开启pgo编译优化.md
index 4623c6a9..7622c3f4 100644
--- a/docs/proposal/23062906-关于开启pgo编译优化.md
+++ b/docs/proposal/23062906-关于开启pgo编译优化.md
@@ -11,7 +11,7 @@ Beginning in Go 1.20, the Go compiler supports profile-guided optimization ([PGO
 1. 为什么要添加`pprof`功能特性？   
 使用 net/http/pprof 在线获取CPU profile信息，用于 [PGO](https://go.dev/doc/pgo) 编译优化。   
 
-2. 如何开启`pgo`编译优化？ 
+2. 如何开启`pgo`编译优化？   
 The standard approach is to store a pprof CPU profile with filename default.pgo in the main package directory of the profiled binary, and build with go build -pgo=auto, which will pick up default.pgo files automatically.  
 
 3. 常见命令