diff --git a/def.go b/def.go
index e055f52..71fb691 100644
--- a/def.go
+++ b/def.go
@@ -59,7 +59,7 @@ type PacketAdminJoin struct {
 func (p *PacketAdminJoin) Bytes() []byte {
 	buf := new(bytes.Buffer)
 	p.PLength = uint16(binary.Size(p))
-	err := binary.Write(buf, binary.LittleEndian, p)
+	err := binary.Write(buf, binary.LittleEndian, p.Packet)
 	logErrorDebug(err, "binary.Write")
 	return buf.Bytes()
 }