1diff --git a/Makefile b/Makefile
2index 3f1e18dc659d..163362b82f94 100644
3--- a/sys/Makefile
4+++ b/sys/Makefile
5@@ -2,6 +2,8 @@
6
7 .include <bsd.own.mk>
8
9+INCSDIR= ${INCSDIR0}
10+
11 SUBDIR= altq arch compat dev fs miscfs \
12 net net80211 netatalk netbt netcan netipsec netinet netinet6 \
13 netmpls netsmb \