diff --git a/math/xlapack/Makefile b/math/xlapack/Makefile
index 86f6f2706bb4..24da2163a150 100644
--- a/math/xlapack/Makefile
+++ b/math/xlapack/Makefile
@@ -1,10 +1,12 @@
 PORTNAME=	xlapack
 
 MAINTAINER=	fortran@FreeBSD.org
 COMMENT=	Extended Precision LAPACK
 
+BROKEN=	3.12.1 does not build, see https://github.com/Reference-LAPACK/lapack/issues/1092
+
 XLAPACK_SLAVEPORT=	yes
 
 MASTERDIR=	${.CURDIR}/../lapack
 
 .include "${MASTERDIR}/Makefile"