diff --git a/demos/ARM7-LPC214x-FatFS-GCC/Makefile b/demos/ARM7-LPC214x-FatFS-GCC/Makefile
index f361c8d2a..adc7d7d68 100644
--- a/demos/ARM7-LPC214x-FatFS-GCC/Makefile
+++ b/demos/ARM7-LPC214x-FatFS-GCC/Makefile
@@ -59,8 +59,9 @@ CSRC = $(PORTSRC) \
        $(TESTSRC) \
        $(HALSRC) \
        $(PLATFORMSRC) \
-       $(BOARDSRC) \
        $(FATFSSRC) \
+       $(BOARDSRC) \
+       ${BOARDPATH}/buzzer.c \
        $(CHIBIOS)/os/various/evtimer.c \
        $(CHIBIOS)/os/various/syscalls.c \
        main.c