diff --git a/biology/gkl/Makefile b/biology/gkl/Makefile
index 4e171461ac93..9574a2aac49f 100644
--- a/biology/gkl/Makefile
+++ b/biology/gkl/Makefile
@@ -1,26 +1,28 @@
 PORTNAME=	gkl
 DISTVERSION=	0.9.1
 PORTREVISION=	1
 CATEGORIES=	biology devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Accelerated kernel library for genomics
 WWW=		https://github.com/Intel-HLS/GKL
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BROKEN_aarch64=	/usr/lib/clang/19/include/ia32intrin.h:312:10: error: use of undeclared identifier '__builtin_ia32_readeflags_u32'
+
 BUILD_DEPENDS=	gmake:devel/gmake
 LIB_DEPENDS=	libisal.so:devel/isa-l
 
 USES=		cmake:noninja java localbase:ldflags
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	Intel-HLS
 GH_PROJECT=	GKL
 JAVA_VERSION=	8 11
 
 BINARY_ALIAS=	make=${GMAKE}
 
 .include <bsd.port.mk>