diff --git a/src/usr.sbin/ntpd/Makefile b/src/usr.sbin/ntpd/Makefile
index 3150e4ad..20582ce6 100644
--- a/src/usr.sbin/ntpd/Makefile
+++ b/src/usr.sbin/ntpd/Makefile
@@ -1,10 +1,11 @@
-#	$OpenBSD: Makefile,v 1.14 2015/02/17 05:48:18 miod Exp $
+#	$OpenBSD: Makefile,v 1.15 2015/10/05 17:26:22 deraadt Exp $
 
 PROG=	ntpd
 SRCS=	ntpd.c log.c ntp.c ntp_msg.c parse.y config.c \
 	server.c client.c sensors.c util.c ntp_dns.c \
 	control.c constraint.c
 CFLAGS+= -Wall -I${.CURDIR}
+CFLAGS+= -fstack-protector-all
 CFLAGS+= -Wstrict-prototypes -Wmissing-prototypes
 CFLAGS+= -Wmissing-declarations
 CFLAGS+= -Wshadow -Wpointer-arith -Wcast-qual