diff --git a/www/mod_backtrace/Makefile b/www/mod_backtrace/Makefile
--- a/www/mod_backtrace/Makefile
+++ b/www/mod_backtrace/Makefile
@@ -15,6 +15,9 @@
 
 LICENSE=	APACHE20
 
+DEPRECATED=	Abandoned upstream in 2012 (version 2.0)
+EXPIRATION_DATE=2022-03-31
+
 MANUAL_PACKAGE_BUILD=	requires apache WITH_EXCEPTION_HOOK=yes
 
 USES=		apache:2.2+