diff --git a/src/model/event.go b/src/model/event.go
index 0d59a13b..f2e8d4d7 100644
--- a/src/model/event.go
+++ b/src/model/event.go
@@ -29,9 +29,9 @@ type Event struct {
 	Nid           int64     `json:"nid"`
 	NeedUpgrade   int       `json:"need_upgrade"`
 	AlertUpgrade  string    `json:"alert_upgrade"`
-	RecvUserIDs   []int64   `json:"recv_user_ids"`
-	RecvUserObjs  []User    `json:"recv_user_objs"`
-	RealUpgrade   bool      `json:"real_upgrade"`
+	RecvUserIDs   []int64   `json:"recv_user_ids" xorm:"-"`
+	RecvUserObjs  []User    `json:"recv_user_objs" xorm:"-"`
+	RealUpgrade   bool      `json:"real_upgrade" xorm:"-"`
 }
 
 type EventDetail struct {