diff --git a/examples/helloworld/dubbo/go-server/app/user.go b/examples/helloworld/dubbo/go-server/app/user.go
index cbc5b3478b218288b745f7d35060607db89afd02..08d6c4df9eff8f079b2a84890157c8bff7f0a90d 100644
--- a/examples/helloworld/dubbo/go-server/app/user.go
+++ b/examples/helloworld/dubbo/go-server/app/user.go
@@ -53,7 +53,7 @@ func init() {
 
 func (u User) String() string {
 	return fmt.Sprintf(
-		"User{Id:%s, Name:%s, Age:%d, Time:%s, Sex:%s}",
+		"User{Id:%s, Name:%s, Age:%d, Time:%s}",
 		u.Id, u.Name, u.Age, u.Time,
 	)
 }