diff --git a/audio/libnjb/Makefile b/audio/libnjb/Makefile
--- a/audio/libnjb/Makefile
+++ b/audio/libnjb/Makefile
@@ -12,6 +12,9 @@
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+DEPRECATED=	Abandoned upstream, no new release since 2011
+EXPIRATION_DATE=2021-12-31
+
 USES=		pathfix ncurses libtool
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes