diff --git a/security/lasso/Makefile b/security/lasso/Makefile
index 39623543b04f..3f05991bcd70 100644
--- a/security/lasso/Makefile
+++ b/security/lasso/Makefile
@@ -1,47 +1,50 @@
 PORTNAME=	lasso
 PORTVERSION=	2.8.2
 CATEGORIES=	security
 MASTER_SITES=	https://dev.entrouvert.org/releases/lasso/
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Free Liberty Alliance Implementation
 WWW=		https://lasso.entrouvert.org/
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}six>0:devel/py-six@${PY_FLAVOR}
 LIB_DEPENDS=	libltdl.so:devel/libltdl \
 		libxmlsec1-openssl.so:security/xmlsec1
 RUN_DEPENDS:=	${BUILD_DEPENDS}
 
 USES=		cpe gmake gnome libtool pathfix pkgconfig python ssl
 CPE_VENDOR=	entrouvert
 USE_GNOME=	glib20 libxml2 libxslt
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--disable-java \
 		--disable-php5 \
 		--with-zlib
 
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=	DOCS PERL PYTHON
 OPTIONS_SUB=	yes
 
 PERL_USES=			perl5
 PERL_CONFIGURE_ENABLE=		perl
 PYTHON_CONFIGURE_ENABLE=	python
 
 .include <bsd.port.options.mk>
 
 .if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400079 || ( ${OSVERSION} >= 1302505 && ${OSVERSION} < 1400000 ))
 CFLAGS+=	-Wno-error=int-conversion
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -E 's,(xmlsec1-openssl >= 1\.2\.6) openssl,\1,' \
 		${CONFIGURE_WRKSRC}/configure
+# Fix build with new xmlsec1 as this function was deprecated
+	@${REINPLACE_CMD} -e 's|BAD_CAST XMLSEC_CRYPTO|BAD_CAST xmlSecGetDefaultCrypto()|g' \
+		${WRKSRC}/lasso/lasso.c
 
 .include <bsd.port.mk>