diff --git a/p2p/conn/connection.go b/p2p/conn/connection.go
index f52fe73f7..9e38e55f5 100644
--- a/p2p/conn/connection.go
+++ b/p2p/conn/connection.go
@@ -724,6 +724,7 @@ type ChannelDescriptor struct {
 	SendQueueCapacity   int
 	RecvBufferCapacity  int
 	RecvMessageCapacity int
+	MessageType         reflect.Type
 }
 
 func (chDesc ChannelDescriptor) FillDefaults() (filled ChannelDescriptor) {