diff --git a/transport/internet/grpc/hub.go b/transport/internet/grpc/hub.go
index a2a5ce40..40bb0b51 100644
--- a/transport/internet/grpc/hub.go
+++ b/transport/internet/grpc/hub.go
@@ -80,6 +80,7 @@ func Listen(ctx context.Context, address net.Address, port net.Port, settings *i
 	var options []grpc.ServerOption
 	var s *grpc.Server
 	if config != nil {
+		// gRPC server may silently ignore TLS errors
 		options = append(options, grpc.Creds(credentials.NewTLS(config.GetTLSConfig(tls.WithNextProto("h2")))))
 	}
 	if grpcSettings.IdleTimeout > 0 || grpcSettings.HealthCheckTimeout > 0 {