diff --git a/usr.bin/systat/Makefile b/usr.bin/systat/Makefile
index 67e3624a7777..ecf831ef2581 100644
--- a/usr.bin/systat/Makefile
+++ b/usr.bin/systat/Makefile
@@ -1,7 +1,7 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/6/93
 
 PROG=	systat
-CFLAGS+=-I/sys -I${.CURDIR}/../vmstat
+CFLAGS+=-I${.CURDIR}/../../sys -I${.CURDIR}/../vmstat
 SRCS=	cmds.c cmdtab.c disks.c fetch.c iostat.c keyboard.c vmstat.c main.c \
 	mbufs.c netcmds.c netstat.c pigs.c swap.c
 LDADD=	-lcurses -ltermcap -lm -lkvm