diff --git a/def.go b/def.go
index 16a879f..951ddec 100644
--- a/def.go
+++ b/def.go
@@ -2,7 +2,7 @@ package main
 
 import (
 	"bytes"
-	"encoding/gob"
+	"encoding/binary"
 )
 
 const (
@@ -58,12 +58,13 @@ type PacketAdminJoin struct {
 
 func (p *PacketAdminJoin) Bytes() []byte {
 	buf := new(bytes.Buffer)
-	enc := gob.NewEncoder(buf)
-	buf.Reset()
-
 	p.PLength = uint16(len(p.Password) + len(p.AppName) + len(p.AppVersion) + 3)
-	err := enc.Encode(p)
-	logErrorDebug(err, "enc.Encode")
+
+	buf.WriteByte(p.PLength)
+	buf.WriteByte(p.PType)
+	buf.WriteString(p.Password)
+	buf.WriteString(p.AppName)
+	buf.WriteString(p.AppVersion)
 
 	return buf.Bytes()
 }