diff --git a/lib/libstand/Makefile b/lib/libstand/Makefile
index ee8087be3ea..c85b694f3e7 100644
--- a/lib/libstand/Makefile
+++ b/lib/libstand/Makefile
@@ -17,7 +17,7 @@ LIBC_SRC=	${LIBSTAND_SRC}/../libc
 
 LIB=		stand
 NO_PIC=
-INCS=		stand.h
+INCS?=		stand.h
 MAN?=		libstand.3
 
 WARNS?=		0
diff --git a/sys/boot/libstand32/Makefile b/sys/boot/libstand32/Makefile
index d1c9ba2f6d8..66798d75e44 100644
--- a/sys/boot/libstand32/Makefile
+++ b/sys/boot/libstand32/Makefile
@@ -10,6 +10,7 @@ LIBSTAND_CPUARCH=${MACHINE_CPUARCH}
 .endif
 LIBC_SRC=	${LIBSTAND_SRC}/../libc
 INTERNALLIB=
+INCS=
 MAN=
 .PATH:	${LIBSTAND_SRC}