diff --git a/usr.sbin/i4b/isdnmonitor/Makefile b/usr.sbin/i4b/isdnmonitor/Makefile
index 11b81bcf4be8..bad57590e796 100644
--- a/usr.sbin/i4b/isdnmonitor/Makefile
+++ b/usr.sbin/i4b/isdnmonitor/Makefile
@@ -1,4 +1,5 @@
 # $FreeBSD$
+
 PROG	=	isdnmonitor
 SRCS	=	main.c curses.c
 MAN8	=	isdnmonitor.8
@@ -6,6 +7,7 @@ MAN8	=	isdnmonitor.8
 # compile debug support
 COPTS	+=	-DDEBUG
 
-LDADD   +=      -lcurses
+DPADD	=	${LIBCURSES}
+LDADD	=	-lcurses
 
 .include <bsd.prog.mk>