diff --git a/core/service.go b/core/service.go
index 2c24f88..a520f56 100644
--- a/core/service.go
+++ b/core/service.go
@@ -113,8 +113,8 @@ type serviceDescription struct {
 	VersionSplits             map[string]string `bson:"version_splits" json:"version_splits"`
 
 	sessionProvider session.Provider
-	wl              memberContainerPtr[string, *whitelistmember]
-	bl              memberContainerPtr[primitive.ObjectID, *blockinfo]
+	wl              *memberContainerPtr[string, *whitelistmember]
+	bl              *memberContainerPtr[primitive.ObjectID, *blockinfo]
 	mongoClient     gocommon.MongoClient
 	sessionTTL      time.Duration
 
@@ -262,8 +262,8 @@ func (sh *serviceDescription) prepare(mg *Maingate) error {
 	sh.updateUserinfo = mg.updateUserinfo
 	sh.getProviderInfo = mg.getProviderInfo
 
-	sh.wl = mg.wl
-	sh.bl = mg.bl
+	sh.wl = &mg.wl
+	sh.bl = &mg.bl
 	sh.serviceSerialized, _ = json.Marshal(sh)
 
 	logger.Println("service is ready :", sh.ServiceCode, string(sh.serviceSerialized))