diff --git a/usr.bin/config/Makefile b/usr.bin/config/Makefile
index 640594211d9b..ea0bfa2d0022 100644
--- a/usr.bin/config/Makefile
+++ b/usr.bin/config/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.11 2019/10/13 07:28:14 mrg Exp $
+#	$NetBSD: Makefile,v 1.12 2020/02/07 20:17:48 fox Exp $
 #	from: @(#)Makefile	8.2 (Berkeley) 4/19/94
 
 .include <bsd.own.mk>
@@ -17,6 +17,8 @@ YHEADER=1
 CPPFLAGS+=-I${.CURDIR} -I.
 CPPFLAGS+= -I${NETBSDSRCDIR}/usr.bin/cksum
 
+COPTS.scan.c+=		${GCC_NO_STRINGOP_TRUNCATION}
+
 .ifndef HOSTPROG
 LDADD+=-lutil
 DPADD+=${LIBUTIL}