diff --git a/messages.go b/messages.go
index 2cc31d5bf..1a3110e44 100644
--- a/messages.go
+++ b/messages.go
@@ -131,6 +131,8 @@ type Msg struct {
 
 	// Block type Message
 	Blocks Blocks `json:"blocks,omitempty"`
+	// permalink
+	Permalink string `json:"permalink,omitempty"`
 }
 
 const (