peer_protocol/protocol.go | 8 ++++++++

diff --git a/peer_protocol/protocol.go b/peer_protocol/protocol.go
index f1f392f9a9c414d3ebb5702b38f77db29ff85c62..19db34fb259d49cc4a09b600ab31ef3443aa0096 100644
--- a/peer_protocol/protocol.go
+++ b/peer_protocol/protocol.go
@@ -68,6 +68,14 @@ 	ExtendedPayload      []byte
 	Port                 uint16
 }
 
+func (msg Message) MustMarshalBinary() []byte {
+	b, err := msg.MarshalBinary()
+	if err != nil {
+		panic(err)
+	}
+	return b
+}
+
 func (msg Message) MarshalBinary() (data []byte, err error) {
 	buf := &bytes.Buffer{}
 	if !msg.Keepalive {