diff --git a/sys/modules/acpi/acpi_video/Makefile b/sys/modules/acpi/acpi_video/Makefile
index 0752a40582bc..77794eea5626 100644
--- a/sys/modules/acpi/acpi_video/Makefile
+++ b/sys/modules/acpi/acpi_video/Makefile
@@ -1,10 +1,10 @@
 #	$FreeBSD$
 
 .PATH:	${.CURDIR}/../../../dev/acpica
 
 KMOD=	acpi_video
-CFLAGS+= -I@/contrib/dev/acpica
+CFLAGS+= -I${.CURDIR}/../../../contrib/dev/acpica
 SRCS=	acpi_video.c
 SRCS+=	opt_acpi.h acpi_if.h bus_if.h device_if.h
 
 .include <bsd.kmod.mk>