diff --git a/biology/libsbml/Makefile b/biology/libsbml/Makefile
index 4c9c7f49048b..5d2aaca36803 100644
--- a/biology/libsbml/Makefile
+++ b/biology/libsbml/Makefile
@@ -1,53 +1,55 @@
 PORTNAME=	libsbml
 PORTVERSION=	5.19.0
 PORTREVISION=	2
 CATEGORIES=	biology devel
 MASTER_SITES=	SF/sbml/libsbml/${PORTVERSION}/stable
 DISTNAME=	libSBML-${PORTVERSION}-core-src
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	API Library for Working with SBML File
-WWW=		https://sbml.org/software/libsbml/
+WWW=		https://sbml.org/software/libsbml/ \
+		https://synonym.caltech.edu/ \
+		https://github.com/sbmlteam/libsbml
 
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/COPYING.txt
 
 USES=		cmake iconv:build pathfix
 
 CMAKE_OFF=	EXIT_ON_ERROR LIBSBML_USE_STRICT_INCLUDES PYTHON_USE_API2_WARNINGS WITH_ALL_PACKAGES WITH_CHECK WITH_CPP_NAMESPACE WITH_CSHARP WITH_DOXYGEN WITH_JAVA WITH_JAVASCRIPT WITH_MATLAB WITH_OCTAVE WITH_PERL WITH_PHP WITH_R WITH_STABLE_PACKAGES WITH_WALL
 CMAKE_ON=	LIBSBML_SHARED_VERSION WITH_BZIP2 WITH_SWIG WITH_ZLIB
 USE_CXXSTD=	c++98
 USE_LDCONFIG=	yes
 WRKSRC=		${WRKDIR}/libsbml-${PORTVERSION}
 
 PLIST_SUB=	PORTVERSION=${PORTVERSION}
 
 OPTIONS_DEFINE=	EXAMPLES PYTHON RUBY
 OPTIONS_SINGLE=	XML
 OPTIONS_SINGLE_XML=	EXPAT LIBXML2 XERCES
 OPTIONS_DEFAULT=LIBXML2 PYTHON
 OPTIONS_SUB=	yes
 
 EXPAT_CMAKE_BOOL=	WITH_EXPAT
 EXPAT_LIB_DEPENDS=	libexpat.so:textproc/expat2
 LIBXML2_CMAKE_BOOL=	WITH_LIBXML
 LIBXML2_USE=		GNOME=libxml2
 LIBXML2_USES=		gnome
 PYTHON_BUILD_DEPENDS=	swig:devel/swig
 PYTHON_CMAKE_BOOL=	WITH_PYTHON
 PYTHON_USES=		python:3.6+
 PYTHON_CMAKE_ON=	WITH_SWIG
 RUBY_BUILD_DEPENDS=	swig:devel/swig
 RUBY_CMAKE_BOOL=	WITH_RUBY
 RUBY_USES=		ruby
 XERCES_CMAKE_BOOL=	WITH_XERCES
 XERCES_LIB_DEPENDS=	libxerces-c.so:textproc/xerces-c3
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|/usr/local|${LOCALBASE}|g' ${WRKSRC}/CMakeLists.txt
 
 post-install-EXAMPLES-on:
 	${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	cd ${WRKSRC}/examples && ${COPYTREE_SHARE} . ${STAGEDIR}${EXAMPLESDIR} '! -name *Makefile*'
 
 .include <bsd.port.mk>
diff --git a/biology/libsbml/pkg-descr b/biology/libsbml/pkg-descr
index 9c0b6cc7db2e..0e8c7548b241 100644
--- a/biology/libsbml/pkg-descr
+++ b/biology/libsbml/pkg-descr
@@ -1,12 +1,9 @@
 LibSBML is an open-source programming library to help you read, write,
 manipulate, translate, and validate SBML files and data streams. It is
 not an application itself (though it does come with example programs),
 but rather a library you can embed in your own applications.
 
 LibSBML understands all Levels and Versions of SBML, as well as the
 SBML Layout proposal by Gauges, Rost, Sahle and Wegner. It's written in
 ISO C and C++ but can be used from all the languages listed in the
 right-hand box.
-
-See also: https://synonym.caltech.edu/
-See also: https://github.com/sbmlteam/libsbml