diff --git a/sbin/ping/Makefile b/sbin/ping/Makefile
index 4723926c9ad2..47708df39c8a 100644
--- a/sbin/ping/Makefile
+++ b/sbin/ping/Makefile
@@ -1,10 +1,12 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/5/93
+#	$Id$
 
 PROG=	ping
 MAN8=	ping.8
 BINOWN=	root
 BINMODE=4555
 COPTS+=	-Wall -Wmissing-prototypes
+DPADD=	${LIBM}
 LDADD=	-lm
 
 .include <bsd.prog.mk>