diff --git a/main.go b/main.go
index ea1225841..b5b23ecbf 100644
--- a/main.go
+++ b/main.go
@@ -187,7 +187,7 @@ func handleConn(c net.Conn) {
 		}
 		fmt.Println("read data：", hex.EncodeToString(buffer[:n]))
 		b := []byte("ok")
-		c.Write(b)
+		c.Write([]byte(hex.EncodeToString(b)))
 	}
 }