diff --git a/devel/xsimd/Makefile b/devel/xsimd/Makefile
index dd8a2139c116..46f6c26f9a62 100644
--- a/devel/xsimd/Makefile
+++ b/devel/xsimd/Makefile
@@ -1,29 +1,30 @@
 PORTNAME=	xsimd
 DISTVERSION=	14.0.0
+PORTREVISION=	1
 CATEGORIES=	devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ wrappers for SIMD intrinsics and mathematical functions
 WWW=		https://github.com/xtensor-stack/xsimd
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 TEST_DEPENDS=	googletest>0:devel/googletest \
 		doctest>=2.4.9:devel/doctest
 
 USES=		cmake:testing compiler:c++11-lang
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	xtensor-stack
 
 CMAKE_TESTING_ON=	BUILD_TESTS # tests fail, see https://github.com/xtensor-stack/xsimd/issues/917
 
 NO_ARCH=	yes
 
 # tests as of 13.2.0:
 # [doctest] test cases:   325 |   323 passed | 2 failed | 0 skipped
 # [doctest] assertions: 16741 | 16739 passed | 2 failed |
 # [doctest] Status: FAILURE!
 
 .include <bsd.port.mk>
diff --git a/devel/xsimd/files/patch-include_xsimd_types_xsimd__vsx__register.hpp b/devel/xsimd/files/patch-include_xsimd_types_xsimd__vsx__register.hpp
new file mode 100644
index 000000000000..e12a160ddc08
--- /dev/null
+++ b/devel/xsimd/files/patch-include_xsimd_types_xsimd__vsx__register.hpp
@@ -0,0 +1,16 @@
+--- include/xsimd/types/xsimd_vsx_register.hpp.orig	2026-08-01 20:31:20 UTC
++++ include/xsimd/types/xsimd_vsx_register.hpp
+@@ -64,10 +64,10 @@ namespace xsimd
+         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(short, short);
+         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(unsigned int, int);
+         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(int, int);
+-        XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(unsigned long, long);
+-        XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(long, long);
++        XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(unsigned long, long long);
++        XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(long, long long);
+         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(float, int);
+-        XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(double, long);
++        XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(double, long long);
+ 
+ #undef XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER
+     }