diff --git a/device/noise-protocol.go b/device/noise-protocol.go
index 06f7df6..2fe352e 100644
--- a/device/noise-protocol.go
+++ b/device/noise-protocol.go
@@ -53,10 +53,10 @@ const (
 )
 
 const (
-	MessageInitiationType  = 1 + 0x40000000
-	MessageResponseType    = 2 + 0x40000000
-	MessageCookieReplyType = 3 + 0x40000000 
-	MessageTransportType   = 4 + 0x40000000
+	MessageInitiationType  = 6
+	MessageResponseType    = 7
+	MessageCookieReplyType = 8
+	MessageTransportType   = 9
 )
 
 const (