diff --git a/app/log/command/command.go b/app/log/command/command.go
index ce8d8a59..d2dd0f5a 100644
--- a/app/log/command/command.go
+++ b/app/log/command/command.go
@@ -44,6 +44,8 @@ func (s *service) Register(server *grpc.Server) {
 		V: s.v,
 	}
 	RegisterLoggerServiceServer(server, ls)
+
+	// For compatibility purposes
 	vCoreDesc := _LoggerService_serviceDesc
 	vCoreDesc.ServiceName = "v2ray.core.app.log.command.LoggerService"
 	server.RegisterService(&vCoreDesc, ls)
diff --git a/app/proxyman/command/command.go b/app/proxyman/command/command.go
index da853816..a7b36159 100644
--- a/app/proxyman/command/command.go
+++ b/app/proxyman/command/command.go
@@ -140,6 +140,8 @@ func (s *service) Register(server *grpc.Server) {
 		hs.ohm = om
 	}))
 	RegisterHandlerServiceServer(server, hs)
+
+	// For compatibility purposes
 	vCoreDesc := _HandlerService_serviceDesc
 	vCoreDesc.ServiceName = "v2ray.core.app.proxyman.command.HandlerService"
 	server.RegisterService(&vCoreDesc, hs)
diff --git a/app/router/command/command.go b/app/router/command/command.go
index f6be1fd8..e38defe4 100644
--- a/app/router/command/command.go
+++ b/app/router/command/command.go
@@ -85,6 +85,8 @@ func (s *service) Register(server *grpc.Server) {
 	common.Must(s.v.RequireFeatures(func(router routing.Router, stats stats.Manager) {
 		rs := NewRoutingServer(router, nil)
 		RegisterRoutingServiceServer(server, rs)
+
+		// For compatibility purposes
 		vCoreDesc := _RoutingService_serviceDesc
 		vCoreDesc.ServiceName = "v2ray.core.app.router.command.RoutingService"
 		server.RegisterService(&vCoreDesc, rs)
diff --git a/app/stats/command/command.go b/app/stats/command/command.go
index cf3519c3..d6ac705c 100644
--- a/app/stats/command/command.go
+++ b/app/stats/command/command.go
@@ -113,6 +113,8 @@ type service struct {
 func (s *service) Register(server *grpc.Server) {
 	ss := NewStatsServer(s.statsManager)
 	RegisterStatsServiceServer(server, ss)
+
+	// For compatibility purposes
 	vCoreDesc := _StatsService_serviceDesc
 	vCoreDesc.ServiceName = "v2ray.core.app.stats.command.StatsService"
 	server.RegisterService(&vCoreDesc, ss)