diff --git a/lang/inko/Makefile b/lang/inko/Makefile
index ef742773832a..06ad2d6ba91e 100644
--- a/lang/inko/Makefile
+++ b/lang/inko/Makefile
@@ -1,122 +1,124 @@
 PORTNAME=	inko
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.13.2
 PORTREVISION=	1
 CATEGORIES=	lang devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Language for building concurrent software
 WWW=		https://inko-lang.org/
 
 LICENSE=	MPL20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+NOT_FOR_ARCHS=	armv6 armv7 i386 mips powerpc # build fails on non-64-bit architectures: Inko requires a 64-bits architecture
+
 LIB_DEPENDS=	libffi.so:devel/libffi
 
 USES=		cargo llvm:15 localbase:ldflags
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	inko-lang
 
 MAKE_ENV=	LLVM_SYS_150_PREFIX=${LLVM_PREFIX} \
 		INKO_RT=${PREFIX}/lib/inko/runtime \
 		INKO_STD=${PREFIX}/lib/inko
 
 CARGO_CRATES=	addr2line-0.21.0 \
 		adler-1.0.2 \
 		aho-corasick-1.1.2 \
 		autocfg-1.1.0 \
 		backtrace-0.3.69 \
 		bitflags-1.3.2 \
 		bitflags-2.4.1 \
 		blake2-0.10.6 \
 		block-buffer-0.10.4 \
 		bstr-0.2.17 \
 		cc-1.0.83 \
 		cfg-if-1.0.0 \
 		concurrent-queue-2.3.0 \
 		console-0.15.7 \
 		crossbeam-queue-0.3.8 \
 		crossbeam-utils-0.8.16 \
 		crypto-common-0.1.6 \
 		digest-0.10.7 \
 		either-1.9.0 \
 		encode_unicode-0.3.6 \
 		errno-0.3.7 \
 		fnv-1.0.7 \
 		generic-array-0.14.7 \
 		getopts-0.2.21 \
 		getrandom-0.2.11 \
 		gimli-0.28.0 \
 		inkwell-0.1.1 \
 		inkwell_internals-0.7.0 \
 		lazy_static-1.4.0 \
 		libc-0.2.150 \
 		linux-raw-sys-0.4.11 \
 		llvm-sys-150.1.2 \
 		lock_api-0.4.11 \
 		log-0.4.20 \
 		memchr-2.6.4 \
 		miniz_oxide-0.7.1 \
 		object-0.32.1 \
 		once_cell-1.18.0 \
 		parking_lot-0.12.1 \
 		parking_lot_core-0.9.9 \
 		pin-project-lite-0.2.13 \
 		polling-2.8.0 \
 		ppv-lite86-0.2.17 \
 		proc-macro2-1.0.69 \
 		quote-1.0.33 \
 		rand-0.8.5 \
 		rand_chacha-0.3.1 \
 		rand_core-0.6.4 \
 		redox_syscall-0.4.1 \
 		regex-1.10.2 \
 		regex-automata-0.1.10 \
 		regex-automata-0.4.3 \
 		regex-syntax-0.8.2 \
 		rustc-demangle-0.1.23 \
 		rustix-0.38.24 \
 		scopeguard-1.2.0 \
 		semver-1.0.20 \
 		similar-2.3.0 \
 		similar-asserts-1.5.0 \
 		smallvec-1.11.2 \
 		socket2-0.5.5 \
 		subtle-2.5.0 \
 		syn-1.0.109 \
 		typenum-1.17.0 \
 		unicode-ident-1.0.12 \
 		unicode-segmentation-1.10.1 \
 		unicode-width-0.1.11 \
 		version_check-0.9.4 \
 		wasi-0.11.0+wasi-snapshot-preview1 \
 		windows-sys-0.45.0 \
 		windows-sys-0.48.0 \
 		windows-targets-0.42.2 \
 		windows-targets-0.48.5 \
 		windows_aarch64_gnullvm-0.42.2 \
 		windows_aarch64_gnullvm-0.48.5 \
 		windows_aarch64_msvc-0.42.2 \
 		windows_aarch64_msvc-0.48.5 \
 		windows_i686_gnu-0.42.2 \
 		windows_i686_gnu-0.48.5 \
 		windows_i686_msvc-0.42.2 \
 		windows_i686_msvc-0.48.5 \
 		windows_x86_64_gnu-0.42.2 \
 		windows_x86_64_gnu-0.48.5 \
 		windows_x86_64_gnullvm-0.42.2 \
 		windows_x86_64_gnullvm-0.48.5 \
 		windows_x86_64_msvc-0.42.2 \
 		windows_x86_64_msvc-0.48.5
 
 do-install:
 	# executable
 	${INSTALL_PROGRAM} ${WRKDIR}/target/*-freebsd/release/inko ${STAGEDIR}${PREFIX}/bin/${PORTNAME}
 	# runtime library
 	${MKDIR} ${STAGEDIR}${PREFIX}/lib/inko/runtime
 	${INSTALL_DATA} ${WRKDIR}/target/*-freebsd/release/libinko.a ${STAGEDIR}${PREFIX}/lib/inko/runtime
 	# standard library
 	cd ${WRKSRC}/std/src && ${COPYTREE_SHARE} std ${STAGEDIR}${PREFIX}/lib/inko
 
 .include <bsd.port.mk>