diff --git a/usr.sbin/ntp/sntp/Makefile b/usr.sbin/ntp/sntp/Makefile
index 71c81573bac9..11316c514296 100644
--- a/usr.sbin/ntp/sntp/Makefile
+++ b/usr.sbin/ntp/sntp/Makefile
@@ -10,7 +10,7 @@ CFLAGS+= -I${.CURDIR}/../../../contrib/ntp/include -I${.CURDIR}/../ \
 	-DPACKAGE=\"sntp\" -DVERSION=\"1.6\" \
 	-I${.CURDIR}/../../../contrib/ntp/libopts
 
-DPADD=	${LIBOPTS}
-LDADD=	${LIBOPTS}
+DPADD=	${LIBM} ${LIBOPTS}
+LDADD=	-lm ${LIBOPTS}
 
 .include <bsd.prog.mk>