diff --git a/audio/rem/Makefile b/audio/rem/Makefile
index b1a0f1d0c044..3390ff8428b3 100644
--- a/audio/rem/Makefile
+++ b/audio/rem/Makefile
@@ -1,28 +1,31 @@
 PORTNAME=	rem
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.12.0
 CATEGORIES=	audio devel
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Library for real-time audio and video processing
 WWW=		https://github.com/baresip
 
+DEPRECATED=	Deprecated, replaced by libre
+EXPIRATION_DATE=	2023-10-10
+
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS+=	libre.so:audio/re
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	baresip
 CMAKE_ARGS=	-DRE_INCLUDE_DIR:STRING="${LOCALBASE}/include/re"
 
 # FIXME values of the next 3 variables taken from source code Makefile
 ABI_MAJOR=	6
 ABI_AGE=	12
 ABI_REV=	0
 PLIST_SUB=	ABI_MAJOR=${ABI_MAJOR}
-PLIST_SUB+=	ABI_AGE=${ABI_AGE}
-PLIST_SUB+=	ABI_REV=${ABI_REV}
+PLIST_SUB+=	ABI_AGE=${ABI_AGE} \
+		ABI_REV=${ABI_REV}
 
 .include <bsd.port.mk>