diff --git a/messages.go b/messages.go
index 2f05f6d75..2cc31d5bf 100644
--- a/messages.go
+++ b/messages.go
@@ -103,6 +103,7 @@ type Msg struct {
 	ReplyCount   int     `json:"reply_count,omitempty"`
 	Replies      []Reply `json:"replies,omitempty"`
 	ParentUserId string  `json:"parent_user_id,omitempty"`
+	LatestReply  string  `json:"latest_reply,omitempty"`
 
 	// file_share, file_comment, file_mention
 	Files []File `json:"files,omitempty"`