diff --git a/net-mgmt/nagcon/Makefile b/net-mgmt/nagcon/Makefile
index 5a4bcf165fd9..73ccac61326c 100644
--- a/net-mgmt/nagcon/Makefile
+++ b/net-mgmt/nagcon/Makefile
@@ -1,32 +1,35 @@
 PORTNAME=	nagcon
 PORTVERSION=	0.0.32
 CATEGORIES=	net-mgmt
 MASTER_SITES=	http://www.vanheusden.com/nagcon/
 
 MAINTAINER=	rand@iteris.com
 COMMENT=	Nagios console monitor
 WWW=		http://www.vanheusden.com/nagcon
 
+DEPRECATED=	Obsolete, only supports legacy versions of Nagios
+EXPIRATION_DATE=2025-07-31
+
 LIB_DEPENDS=	libstrfunc.so:devel/libstrfunc
 
 PLIST_FILES=	bin/nagcon
 
 CFILES=		error.c
 CPPFILES=	utils.cpp br.cpp nc.cpp pl.cpp
 
 USES=		ncurses tar:tgz
 CFLAGS+=	-DVERSION=\"${PORTVERSION}\" -I${LOCALBASE}/include
 LDFLAGS+=	-lncurses -lstdc++ -L${LOCALBASE}/lib -lstrfunc -ltinfo
 
 do-build:
 	${CC} ${CFLAGS} -c -o ${WRKSRC}/${CFILES:C/\.c//}.o ${WRKSRC}/${CFILES}
 .for f in ${CPPFILES}
 	${CXX} ${CFLAGS} -c -o ${WRKSRC}/${f:C/\.cpp//}.o ${WRKSRC}/${f}
 .endfor
 	${CC} ${LDFLAGS} ${WRKSRC}/error.o ${CPPFILES:C/(.*)\.cpp/${WRKSRC}\/\1.o/} \
 		-o ${WRKSRC}/${PORTNAME}
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
 
 .include <bsd.port.mk>