diff --git a/cad/basicdsp/Makefile b/cad/basicdsp/Makefile
index 91940307c486..30bfb4600ba4 100644
--- a/cad/basicdsp/Makefile
+++ b/cad/basicdsp/Makefile
@@ -1,25 +1,28 @@
 PORTNAME=	basicdsp
 PORTVERSION=	1.01
 PORTREVISION=	10
 CATEGORIES=	cad education hamradio
 MASTER_SITES=	http://wwwhome.cs.utwente.nl/~ptdeboer/ham/basicdsp/ \
 		LOCAL/db
 
 MAINTAINER=	db@FreeBSD.org
 COMMENT=	Program for experimenting with simple audio DSP algorithms
 WWW=		https://wwwhome.cs.utwente.nl/~ptdeboer/ham/basicdsp/
 
+DEPRECATED=	Abandoned project and use deprecated wxgtk28
+EXPIRATION_DATE=	2022-12-31
+
 LICENSE=	GPLv2
 
 USES=		compiler:c++11-lang dos2unix tar:tgz
 USE_WX=		2.8+
 WX_COMPS=	wx wx:build wx:run
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|%%WX_CONFIG%%|${WX_CONFIG}|g' ${WRKSRC}/Makefile
 
 do-install:
 	${INSTALL_MAN}	${WRKSRC}/basicdsp.1 ${STAGEDIR}${MANPREFIX}/man/man1/basicdsp.1
 	${INSTALL_PROGRAM}	${WRKSRC}/basicdsp ${STAGEDIR}${PREFIX}/bin/basicdsp
 
 .include <bsd.port.mk>