diff --git a/biology/ncbi-cxx-toolkit/Makefile b/biology/ncbi-cxx-toolkit/Makefile
index 4148f33e2d63..49d024208177 100644
--- a/biology/ncbi-cxx-toolkit/Makefile
+++ b/biology/ncbi-cxx-toolkit/Makefile
@@ -1,48 +1,50 @@
 PORTNAME=	ncbi-cxx-toolkit
 DISTVERSION=	25_0_0
 CATEGORIES=	biology science devel
 MASTER_SITES=	ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools++/2021/Aug_18_2021/
 DISTNAME=	ncbi_cxx--${DISTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	NCBI C++ Toolkit
 
 LICENSE=	PD
 LICENSE_FILE=	${WRKSRC}/doc/public/LICENSE
 
+BROKEN_FreeBSD_11=	libxconnserv.so, not found (try using -rpath or -rpath-link)
+
 LIB_DEPENDS=	libcdd.so:math/cddlib \
 		liblmdb.so:databases/lmdb \
 		libpcre.so:devel/pcre
 RUN_DEPENDS=	bash:shells/bash
 
 USES=		compiler:c++11-lang gmake mysql perl5 python shebangfix ssl xorg
 USE_XORG=	x11 xpm
 
 SHEBANG_FILES=	src/app/blast/get_species_taxids.sh
 SHEBANG_GLOB=	*.pl *.py
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--without-debug --with-dll --without-static \
 		--without-vdb
 
 WRKSRC=		${WRKDIR}/public-${DISTVERSION:S/_/./g}-2021-08-18-11-21-29
 
 post-install:
 	# strip
 	@${FIND} ${STAGEDIR}${PREFIX}/bin -type f | ${GREP} -v -E '\.(sh|py|pl)$$' | ${XARGS} ${STRIP_CMD}
 	@${FIND} ${STAGEDIR}${PREFIX}/lib -name "*.so" | ${XARGS} ${STRIP_CMD}
 	# remove an empty directory
 	#@${RMDIR} ${STAGEDIR}${PREFIX}/include/ncbi-tools++/objtools/data_loaders/genbank/psg
 	@${RMDIR} \
 		${STAGEDIR}${PREFIX}/include/ncbi-tools++/algo/ms/formats \
 		${STAGEDIR}${PREFIX}/include/ncbi-tools++/algo/ms
 	# remove the conflicting file
 	@${RM} \
 		${STAGEDIR}${PREFIX}/lib/libcdd.so \
 		${STAGEDIR}${PREFIX}/lib/liblmdb.so
 	# autoplist: thousands of files
 	@cd ${STAGEDIR}${PREFIX} && \
 		${RMDIR} include/ncbi-tools++/algo/blast/bl2api include/ncbi-tools++/objtools/test && \
 		${FIND} * -type f -or -type l >> ${TMPPLIST}
 
 .include <bsd.port.mk>