diff --git a/net-p2p/libbt/Makefile b/net-p2p/libbt/Makefile
index 2e2a4be64fd3..d9f125511185 100644
--- a/net-p2p/libbt/Makefile
+++ b/net-p2p/libbt/Makefile
@@ -1,43 +1,46 @@
 PORTNAME=	libbt
 DISTVERSION=	1.06
 CATEGORIES=	net-p2p devel
 MASTER_SITES=	SF
 
 MAINTAINER=	egypcio@FreeBSD.org
 COMMENT=	C library implementing the core BitTorrent protocol
 WWW=		https://libbt.sourceforge.net/
 
 LICENSE=	GPLv2 LGPL21
 LICENSE_COMB=	multi
 
+DEPRECATED=	Last release in 2007 and no active development, lacks functionality found in modern implementations. Consider using net-p2p/libtorrent-rasterbar or net-p2p/libtorrent-rasterbar2
+EXPIRATION_DATE=2024-03-31
+
 LIB_DEPENDS=	libcurl.so:ftp/curl \
 		libuuid.so:misc/e2fsprogs-libuuid
 
 USES=		gmake localbase ssl
 GNU_CONFIGURE=	yes
 
 CONFLICTS_INSTALL=	btcheck # bin/btcheck
 
 DOCS=		docs/protocol.txt docs/protocol-ext.txt \
 		CHANGELOG CREDITS README
 
 OPTIONS_DEFINE=	DOCS
 
 PORTDOCS=	*
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|depend||' ${WRKSRC}/Makefile.in
 	@${REINPLACE_CMD} -e 's|-lssl|-lcrypto|' ${WRKSRC}/configure
 	@${REINPLACE_CMD} -e 's|\(CFLAGS:=\)|\1\@CFLAGS\@ \@CPPFLAGS\@ |' ${WRKSRC}/src/Makefile.in
 
 do-install:
 	${INSTALL_DATA} ${WRKSRC}/src/libbt.a ${STAGEDIR}${PREFIX}/lib
 	@${MKDIR} ${STAGEDIR}${PREFIX}/include/libbt
 	cd ${WRKSRC}/src && ${INSTALL_PROGRAM} btcheck btget btlist ${STAGEDIR}${PREFIX}/bin
 	cd ${WRKSRC}/include && ${INSTALL_DATA} *.h ${STAGEDIR}${PREFIX}/include/libbt
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	cd ${WRKSRC} && ${INSTALL_DATA} ${DOCS} ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>