diff --git a/midi_devices.hpp b/midi_devices.hpp
index c8ccda4..b474c2f 100644
--- a/midi_devices.hpp
+++ b/midi_devices.hpp
@@ -67,9 +67,12 @@ USBHub hub3(usb_host);
 #elif NUM_HUBS_MIDI_DEVICE_USB_HOST_SERIAL < 5
 USBHub hub4(usb_host);
 #endif
-USBSerial_BigBuffer userial(usb_host, 1);
-MIDI_NAMESPACE::SerialMIDI<USBSerial_BigBuffer, CustomBaudRateSettings> serialMIDI(userial);
-MIDI_NAMESPACE::MidiInterface<MIDI_NAMESPACE::SerialMIDI<USBSerial_BigBuffer, CustomBaudRateSettings>> usbhost_midi_serial((MIDI_NAMESPACE::SerialMIDI<USBSerial_BigBuffer, CustomBaudRateSettings> &)serialMIDI);
+//USBSerial_BigBuffer userial(usb_host, 1);
+//MIDI_NAMESPACE::SerialMIDI<USBSerial_BigBuffer, CustomBaudRateSettings> serialMIDI(userial);
+//MIDI_NAMESPACE::MidiInterface<MIDI_NAMESPACE::SerialMIDI<USBSerial_BigBuffer, CustomBaudRateSettings>> usbhost_midi_serial((MIDI_NAMESPACE::SerialMIDI<USBSerial_BigBuffer, CustomBaudRateSettings> &)serialMIDI);
+USBSerial userial(usb_host);
+MIDI_NAMESPACE::SerialMIDI<USBSerial, CustomBaudRateSettings> serialMIDI(userial);
+MIDI_NAMESPACE::MidiInterface<MIDI_NAMESPACE::SerialMIDI<USBSerial, CustomBaudRateSettings>> usbhost_midi_serial((MIDI_NAMESPACE::SerialMIDI<USBSerial, CustomBaudRateSettings> &)serialMIDI);
 #endif
 
 void handleNoteOn(byte inChannel, byte inNumber, byte inVelocity);