diff --git a/atusb/fw/Makefile b/atusb/fw/Makefile
index 76b5b7f..653cc56 100644
--- a/atusb/fw/Makefile
+++ b/atusb/fw/Makefile
@@ -37,7 +37,7 @@ BOOT_OBJS = boot.o board.o sernum.o spi.o flash.o dfu.o \
 
 vpath %.c usb/
 
-CFLAGS += -Iinclude -Iusb
+CFLAGS += -Iinclude -Iusb -I.
 
 # ----- Verbosity control -----------------------------------------------------
 
diff --git a/atusb/fw/usb/usb.c b/atusb/fw/usb/usb.c
index 54dd2cd..f0fe51a 100644
--- a/atusb/fw/usb/usb.c
+++ b/atusb/fw/usb/usb.c
@@ -20,7 +20,7 @@
 #include <stdint.h>
 
 #include "usb.h"
-#include "../board.h"
+#include "board.h"
 
 
 #ifndef NULL