diff --git a/math/openfst/Makefile b/math/openfst/Makefile
index df1b91da6597..cf0e25329dc6 100644
--- a/math/openfst/Makefile
+++ b/math/openfst/Makefile
@@ -5,10 +5,13 @@ CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Library for working with weighted finite-state transducers
-WWW=		https://www.openfst.org/
+WWW=		https://www.openfst.org/ \
+		https://github.com/kkm000/openfst
 
 LICENSE=	APACHE20
 
+BROKEN_FreeBSD_15=	compilation fails with clang-19, see https://github.com/kkm000/openfst/issues/58
+
 USES=		cmake compiler:c++17-lang
 USE_LDCONFIG=	yes