diff --git a/usr.bin/beep/Makefile b/usr.bin/beep/Makefile
index f252ab64f84..8388ff7ff98 100644
--- a/usr.bin/beep/Makefile
+++ b/usr.bin/beep/Makefile
@@ -1,6 +1,7 @@
+.include <src.opts.mk>
+
 PROG=	beep
 MAN=	beep.1
-
-LDFLAGS= -lm
+LIBADD=	m
 
 .include <bsd.prog.mk>