diff --git a/conf/autopilot/setup.makefile b/conf/autopilot/setup.makefile
index 3a0e4bb45c..92deec1164 100644
--- a/conf/autopilot/setup.makefile
+++ b/conf/autopilot/setup.makefile
@@ -17,6 +17,7 @@ $(TARGET).CFLAGS += -DBOARD_CONFIG=$(BOARD_CFG)
 # a test program to tunnel between both uart
 tunnel.CFLAGS += -DFBW -DLED
 tunnel.srcs += $(SRC_ARCH)/uart_tunnel.c
+tunnel.srcs += mcu.c $(SRC_ARCH)/mcu_arch.c
 
 
 # for the usb_tunnel we need to set PCLK higher with the flag USE_USB_HIGH_PCLK
@@ -28,6 +29,7 @@ usb_tunnel_0.srcs += $(SRC_ARCH)/usb_tunnel.c $(SRC_ARCH)/usb_ser_hw.c $(SRC_ARC
 usb_tunnel_0.srcs += $(SRC_ARCH)/lpcusb/usbhw_lpc.c $(SRC_ARCH)/lpcusb/usbinit.c
 usb_tunnel_0.srcs += $(SRC_ARCH)/lpcusb/usbcontrol.c $(SRC_ARCH)/lpcusb/usbstdreq.c
 usb_tunnel_0.srcs += sys_time.c $(SRC_ARCH)/sys_time_hw.c $(SRC_ARCH)/armVIC.c
+usb_tunnel_0.srcs += mcu.c $(SRC_ARCH)/mcu_arch.c
 
 usb_tunnel_1.CFLAGS += -DFBW -DUSE_UART1 -DUART1_BAUD=B115200
 usb_tunnel_1.CFLAGS += -DUSE_USB_LINE_CODING -DUSE_USB_SERIAL -DLED -DUSE_USB_HIGH_PCLK
@@ -35,6 +37,7 @@ usb_tunnel_1.srcs += $(SRC_ARCH)/usb_tunnel.c $(SRC_ARCH)/usb_ser_hw.c $(SRC_ARC
 usb_tunnel_1.srcs += $(SRC_ARCH)/lpcusb/usbhw_lpc.c $(SRC_ARCH)/lpcusb/usbinit.c
 usb_tunnel_1.srcs += $(SRC_ARCH)/lpcusb/usbcontrol.c $(SRC_ARCH)/lpcusb/usbstdreq.c
 usb_tunnel_1.srcs += sys_time.c $(SRC_ARCH)/sys_time_hw.c $(SRC_ARCH)/armVIC.c
+usb_tunnel_1.srcs += mcu.c $(SRC_ARCH)/mcu_arch.c
 
 
 
@@ -71,4 +74,4 @@ setup_actuators.CFLAGS += -DUSE_UART1 -DUART1_BAUD=B57600 -DDOWNLINK_DEVICE=Uart
 setup_actuators.CFLAGS += -DDOWNLINK -DDOWNLINK_TRANSPORT=PprzTransport -DDATALINK=PPRZ
 setup_actuators.CFLAGS += -DDOWNLINK_FBW_DEVICE=Uart1 -DDOWNLINK_AP_DEVICE=Uart1
 setup_actuators.CFLAGS += $(SETUP_INC) -Ifirmwares/fixedwing
-setup_actuators.srcs += sys_time.c $(SRC_ARCH)/sys_time_hw.c $(SRC_ARCH)/armVIC.c pprz_transport.c downlink.c $(SRC_FIRMWARE)/setup_actuators.c $(SRC_ARCH)/mcu_periph/uart_arch.c firmwares/fixedwing/main.c
+setup_actuators.srcs += sys_time.c $(SRC_ARCH)/sys_time_hw.c $(SRC_ARCH)/armVIC.c pprz_transport.c downlink.c $(SRC_FIRMWARE)/setup_actuators.c $(SRC_ARCH)/mcu_periph/uart_arch.c firmwares/fixedwing/main.c mcu.c $(SRC_ARCH)/mcu_arch.c