diff --git a/textproc/fox-xml/Makefile b/textproc/fox-xml/Makefile
index 19991ed1f274..7693d9337e95 100644
--- a/textproc/fox-xml/Makefile
+++ b/textproc/fox-xml/Makefile
@@ -1,23 +1,23 @@
 PORTNAME=	fox
 DISTVERSION=	4.1.2-91
 PORTREVISION=	5
 DISTVERSIONSUFFIX=	-g9c6716e
 CATEGORIES=	textproc
 PKGNAMESUFFIX=	-xml
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Fortran XML library
 WWW=		https://homepages.see.leeds.ac.uk/~earawa/FoX/
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-CONFLICTS_INSTALL=	xmlf90
+CONFLICTS_INSTALL=	xmlf90 # https://github.com/andreww/fox/issues/80
 
 GNU_CONFIGURE=	yes
 USES=		fortran gmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	andreww
 ALL_TARGET=	default
 
 .include <bsd.port.mk>
diff --git a/textproc/xmlf90/Makefile b/textproc/xmlf90/Makefile
index 0c4e25a940e6..5357bf6424b1 100644
--- a/textproc/xmlf90/Makefile
+++ b/textproc/xmlf90/Makefile
@@ -1,27 +1,27 @@
 PORTNAME=	xmlf90
 DISTVERSION=	1.5.6
 CATEGORIES=	textproc
 MASTER_SITES=	https://gitlab.com/siesta-project/libraries/xmlf90/-/archive/${DISTVERSION}/
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Suite of light-weight libraries to work with XML in Fortran
 WWW=		https://launchpad.net/xmlf90
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-CONFLICTS_INSTALL=	fox-xml
+CONFLICTS_INSTALL=	fox-xml # see https://gitlab.com/siesta-project/libraries/xmlf90/-/issues/8
 
 USES=		autoreconf fortran gmake libtool
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--disable-static
 
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=	DOCS
 
 PORTDOCS=	*
 
 .include <bsd.port.mk>