diff --git a/service/dbmService.go b/service/dbmService.go
index 5cae92d..6610a54 100644
--- a/service/dbmService.go
+++ b/service/dbmService.go
@@ -67,10 +67,10 @@ func GetGORMDBObject(dbmInfo *proto.DBManage) (db_ *gorm.DB, err error) {
 	}
 
 	dao.DBMMapRWMutex.Lock()
-	var dbValue *proto.DBValue
+	var dbValue proto.DBValue
 	dbValue.Value = db_
 	dbValue.LastUserTime = worker.GetCurrentTimestamp()
-	dao.DBMMap[dbmInfo.ID] = dbValue
+	dao.DBMMap[dbmInfo.ID] = &dbValue
 	dao.DBMMapRWMutex.Unlock()
 	return db_, err
 }