diff --git a/math/heyoka/Makefile b/math/heyoka/Makefile
index c46f9c458961..f54453da8cba 100644
--- a/math/heyoka/Makefile
+++ b/math/heyoka/Makefile
@@ -1,45 +1,47 @@
 PORTNAME=	heyoka
 DISTVERSIONPREFIX=	v
 DISTVERSION=	5.0.0
 CATEGORIES=	math
 
 PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
 PATCHFILES=	e9ca3726897a0b114876f4486d8903740c167893.patch:-p1 # 4 release followup patches from https://github.com/bluescarni/heyoka/pull/428
 PATCHFILES+=	86e10d0115074b347d74e78102d59395091c66ac.patch:-p1
 PATCHFILES+=	c5609ec799822a3a44044d061a8376221863f747.patch:-p1
 PATCHFILES+=	f60ce702cb5d2005598c139c87a2b93460f0771a.patch:-p1
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ library for ODE integration via Taylor's method and LLVM
 WWW=		https://bluescarni.github.io/heyoka/
 
 LICENSE=	MPL20
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+BROKEN_FreeBSD_13=	compilation fails: no member named 'transform' in namespace 'std::ranges'; did you mean 'llvm::transform' (std::ranges::transform isn't present)
+
 LIB_DEPENDS=	libboost_serialization.so:devel/boost-libs \
 		libfmt.so:devel/libfmt \
 		libgmp.so:math/gmp \
 		libmp++.so:math/mppp \
 		libmpc.so:math/mpc \
 		libmpfr.so:math/mpfr \
 		libtbb.so:devel/onetbb \
 		libsleef.so:math/sleef \
 		libspdlog.so:devel/spdlog
 TEST_DEPENDS=	xtensor>0:math/xtensor \
 		xtensor-blas>0:math/xtensor-blas
 
 USES=		cmake:testing compiler:c++17-lang llvm:min=16,build,run
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	bluescarni
 
 CMAKE_ON=		HEYOKA_WITH_MPPP HEYOKA_WITH_SLEEF
 CMAKE_ARGS=		-DFREEBSD_LLVM_VERSION=${LLVM_VERSION}
 CMAKE_TESTING_ON=	HEYOKA_BUILD_TESTS # 1 test fails, see https://github.com/bluescarni/heyoka/issues/338
 
 # 2 tests fail:
 # * https://github.com/bluescarni/heyoka/issues/429
 # * https://github.com/bluescarni/heyoka/issues/430
 
 .include <bsd.port.mk>