diff --git a/hardware/arduino/avr/variants/yun/pins_arduino.h b/hardware/arduino/avr/variants/yun/pins_arduino.h
index 206866aaa..15f24cd27 100644
--- a/hardware/arduino/avr/variants/yun/pins_arduino.h
+++ b/hardware/arduino/avr/variants/yun/pins_arduino.h
@@ -39,11 +39,8 @@
 //
 // SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
 //                            pins are NOT connected to anything by default.
-#define SERIAL_PORT_MONITOR        Serial
-#define SERIAL_PORT_USBVIRTUAL     Serial
-#define SERIAL_PORT_HARDWARE       Serial1
 #define SERIAL_PORT_LINUXBRIDGE    Serial1
 
-// this is defined in the Leonardo variant
+// defined in the Leonardo variant
 #undef  SERIAL_PORT_HARDWARE_OPEN