diff --git a/Makefile.inc b/Makefile.inc
index 7b496e8..c1eb9f0 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -1,8 +1,8 @@
-#	$NetBSD: Makefile.inc,v 1.7 1997/10/18 06:42:52 lukem Exp $
+#	$NetBSD: Makefile.inc,v 1.8 1997/10/25 06:58:22 lukem Exp $
 
 LIBCOMMON != cd ${.CURDIR}/../common;\
     printf "xxx: .MAKE\n\t@echo \$${.OBJDIR}\n" | ${MAKE} -s -f-
-CFLAGS+=-I${.CURDIR}/../common
+CPPFLAGS+=-I${.CURDIR}/../common
 DPADD+=	${LIBKVM} ${LIBCOMMON}/libcommon.a
 LDADD+=	-lkvm -L${LIBCOMMON} -lcommon