diff --git a/def.go b/def.go
index 3e36bbe..23b0d1f 100644
--- a/def.go
+++ b/def.go
@@ -25,6 +25,7 @@ type ChatWarsCallback struct {
 }
 
 type ChatWarsMessage struct {
+	ObjID64          int64              `json:"obj_id"`
 	TGUserID64       int64              `json:"tg_user_id"`
 	TGSenderUserID64 int64              `json:"tg_sender_user_id"`
 	Date             time.Time          `json:"date"`