diff --git a/Makefile b/Makefile
index 8d6b8010..c9392f24 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
 BOARD    = model01
 MCU 		= atmega32u4
 
-DEVICE_PORT =  /dev/cu.usbmodemHIDO1
+DEVICE_PORT :=  `ls /dev/cu.usbmodemHID??`
 DEVICE_PORT_BOOTLOADER := `ls /dev/cu.usbmodem14?1`
 ARDUINO_LIBS = 
 GIT_VERSION := $(shell git describe --abbrev=4 --dirty --always)