diff --git a/pkg/common/db/model.go b/pkg/common/db/model.go
index c61416dd4..2dbc3bb8c 100644
--- a/pkg/common/db/model.go
+++ b/pkg/common/db/model.go
@@ -65,7 +65,7 @@ func init() {
 		Password:  config.Config.Mongo.DBPassword,
 		PoolLimit: config.Config.Mongo.DBMaxPoolSize,
 	}
-	mgoSession, err = mgo.DialWithInfo(mgoDailInfo)
+	mgoSession, err := mgo.DialWithInfo(mgoDailInfo)
 
 	if err != nil {