diff --git a/math/libxls/Makefile b/math/libxls/Makefile
index 50775156c8f9..7e7d2add3b0f 100644
--- a/math/libxls/Makefile
+++ b/math/libxls/Makefile
@@ -1,19 +1,21 @@
 PORTNAME=	libxls
 PORTVERSION=	1.6.2
 CATEGORIES=	math devel
 MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/v${PORTVERSION}/
 
 MAINTAINER=	bapt@FreeBSD.org
 COMMENT=	Extract Cell Data From Excel xls files
 WWW=		https://github.com/libxls/libxls
 
 LICENSE=	BSD2CLAUSE
 
-USES=	compiler:c++11-lang cpe libtool
+USES=		compiler:c++11-lang cpe libtool
 CPE_VENDOR=	${PORTNAME}_project
 
+CONFLICTS_INSTALL=	catdoc
+
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 
 .include <bsd.port.mk>
diff --git a/textproc/catdoc/Makefile b/textproc/catdoc/Makefile
index 1467ceb509fc..e593a403a661 100644
--- a/textproc/catdoc/Makefile
+++ b/textproc/catdoc/Makefile
@@ -1,42 +1,44 @@
 PORTNAME=	catdoc
 PORTVERSION=	0.95
 CATEGORIES=	textproc
 MASTER_SITES=	http://ftp.wagner.pp.ru/pub/catdoc/ \
-		http://mirror.amdmi3.ru/distfiles/
+		https://mirror.amdmi3.ru/distfiles/
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	MS Word/Excel converter to plain ASCII or TeX. TK viewer included
 WWW=		https://www.wagner.pp.ru/~vitus/software/catdoc/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+USES=		cpe gmake
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-install-root="${STAGEDIR}"
-USES=		cpe gmake
 CPE_VENDOR=	fossies
 
+CONFLICTS_INSTALL=	libxls
+
 PORTDATA=	*
 
 OPTIONS_DEFINE=	WORDVIEW
 OPTIONS_DEFAULT=WORDVIEW
 OPTIONS_SUB=	yes
 
 WORDVIEW_DESC=	Build Tcl/Tk document viewer
 
 WORDVIEW_USES=	tk
 WORDVIEW_CONFIGURE_ON=	--with-wish=${WISH}
 WORDVIEW_CONFIGURE_OFF=	--disable-wordview
 
 .if !defined(LANG) || ${LANG} != ru_RU.KOI8-R
 # Remove the below line to get Cyrillic code page support instead
 CFLAGS+=	-DLATIN1=1
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e 's,%%PREFIX%%,${PREFIX},' ${WRKSRC}/doc/catdoc.1.in
 
 post-install:
 	cd ${STAGEDIR}${PREFIX}/bin && ${STRIP_CMD} catdoc catppt xls2csv
 
 .include <bsd.port.mk>