diff --git a/pkg/common/db/table/relation/chatlog.go b/pkg/common/db/table/relation/chatlog.go
index dcf39aca5..5d04edbe9 100644
--- a/pkg/common/db/table/relation/chatlog.go
+++ b/pkg/common/db/table/relation/chatlog.go
@@ -1,7 +1,6 @@
 package relation
 
 import (
-	"gorm.io/gorm"
 	"time"
 
 	pbMsg "OpenIM/pkg/proto/msg"
@@ -27,7 +26,6 @@ type ChatLogModel struct {
 	SendTime         time.Time `gorm:"column:send_time;index:sendTime;index:content_type,priority:1;index:session_type,priority:1;index:recv_id,priority:1;index:send_id,priority:1" json:"sendTime"`
 	CreateTime       time.Time `gorm:"column:create_time" json:"createTime"`
 	Ex               string    `gorm:"column:ex;type:varchar(1024)" json:"ex"`
-	DB               *gorm.DB
 }
 
 func (ChatLogModel) TableName() string {