diff --git a/science/openmc/Makefile b/science/openmc/Makefile
index 33a890944bd3..9481907cdec7 100644
--- a/science/openmc/Makefile
+++ b/science/openmc/Makefile
@@ -5,11 +5,15 @@ CATEGORIES=	science
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Monte Carlo neutron and photon transport simulation code
-WWW=		https://openmc.org/
+WWW=		https://openmc.org/ \
+		https://docs.openmc.org/en/stable/ \
+		https://github.com/openmc-dev/openmc
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BROKEN_FreeBSD_15=	compilation fails with clang-19, see https://github.com/openmc-dev/openmc/issues/3183
+
 BUILD_DEPENDS=	xtensor>0:math/xtensor
 LIB_DEPENDS=	libfmt.so:devel/libfmt \
 		libhdf5.so:science/hdf5 \