diff --git a/core/comm/db.go b/core/comm/db.go
index 861c9d1..1c5dd47 100644
--- a/core/comm/db.go
+++ b/core/comm/db.go
@@ -9,7 +9,6 @@ import (
 )
 
 var (
-	//DbSys   *xorm.Engieq
 	DbSysHelper *gocloud.DBHelper
 	DbMongo     *qmgo.Client
 )