diff --git a/lang/ldc/Makefile b/lang/ldc/Makefile
index f650d494ad93..03245d5b85ae 100644
--- a/lang/ldc/Makefile
+++ b/lang/ldc/Makefile
@@ -1,40 +1,43 @@
 PORTNAME=	ldc
 PORTVERSION=	1.41.0
 DISTVERSIONSUFFIX=	-src
 CATEGORIES=	lang
 MASTER_SITES=	https://github.com/ldc-developers/${PORTNAME}/releases/download/v${DISTVERSION}/
 DISTFILES=	${DISTNAME}${EXTRACT_SUFX} \
 		ldc2-${PORTVERSION}-freebsd-x86_64.tar.xz
 
 MAINTAINER=	acm@FreeBSD.org
 COMMENT=	LLVM-based D compiler
 WWW=		https://wiki.dlang.org/LDC
 
 LICENSE=	BSD3CLAUSE
 
 ONLY_FOR_ARCHS=	amd64
 ONLY_FOR_ARCHS_REASON=	The bootstrap compiler is provided only for x86_64
 
 BUILD_DEPENDS=	${LOCALBASE}/llvm19/lib/libLLVM-19.so:devel/llvm19 # required for bootstrap
 LIB_DEPENDS=	libconfig.so:devel/libconfig
 
 USES=		llvm:lib,run,min=15,max=20 ninja cmake:insource pkgconfig
 
 USE_LDCONFIG=	yes
 
 CFLAGS+=	-fPIC
 
 CMAKE_ARGS+=	-DLDC_INSTALL_PREFIX="${PREFIX}" \
 		-DD_COMPILER="${WRKDIR}/ldc2-${PORTVERSION}-freebsd-x86_64/bin/ldmd2" \
 		-DLLVM_CONFIG=${LOCALBASE}/bin/${LLVM_CONFIG} \
 		-DBUILD_SHARED_LIBS="BOTH" \
 		-DBUILD_LTO_LIBS=ON
 
+post-patch:
+	cd ${WRKDIR}; patch < ${.CURDIR}/files/extra-patch-ldc2-1.41.0-freebsd-x86_64-import-core-sys-freebsd-config.d
+
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/ldc-build-runtime
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/ldc-profdata
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/ldc-prune-cache
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/ldc2
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/ldmd2
 
 .include <bsd.port.mk>
diff --git a/lang/ldc/files/extra-patch-ldc2-1.41.0-freebsd-x86_64-import-core-sys-freebsd-config.d b/lang/ldc/files/extra-patch-ldc2-1.41.0-freebsd-x86_64-import-core-sys-freebsd-config.d
new file mode 100644
index 000000000000..1a8de7a3d4a7
--- /dev/null
+++ b/lang/ldc/files/extra-patch-ldc2-1.41.0-freebsd-x86_64-import-core-sys-freebsd-config.d
@@ -0,0 +1,12 @@
+--- ldc2-1.41.0-freebsd-x86_64/import/core/sys/freebsd/config.d.orig	2025-06-07 02:43:09 UTC
++++ ldc2-1.41.0-freebsd-x86_64/import/core/sys/freebsd/config.d
+@@ -14,7 +14,8 @@
+ // NOTE: When adding newer versions of FreeBSD, verify all current versioned
+ // bindings are still compatible with the release.
+ 
+-     version (FreeBSD_15) enum __FreeBSD_version = 1500000;
++     version (FreeBSD_16) enum __FreeBSD_version = 1600000;
++else version (FreeBSD_15) enum __FreeBSD_version = 1500000;
+ else version (FreeBSD_14) enum __FreeBSD_version = 1400000;
+ else version (FreeBSD_13) enum __FreeBSD_version = 1302000;
+ else version (FreeBSD_12) enum __FreeBSD_version = 1204000;