diff --git a/net/tayga/Makefile b/net/tayga/Makefile
index 83e5e047c2d3..8b28f9c7d974 100644
--- a/net/tayga/Makefile
+++ b/net/tayga/Makefile
@@ -1,31 +1,34 @@
 PORTNAME=	tayga
 DISTVERSION=	0.9.6
 CATEGORIES=	net
 
 MAINTAINER=	alven@FreeBSD.org
 COMMENT=	Userland stateless NAT64 daemon
 WWW=		https://github.com/apalrd/tayga/
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+NOT_FOR_ARCHS=	i386
+NOT_FOR_ARCHS_REASON=	64-bit time_t is required
+
 USES=		gmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	apalrd
 
 TEST_TARGET=	test
 
 CFLAGS+=	-DTAYGA_CONF_PATH='\"${PREFIX}/etc/tayga.conf\"'
 
 PORTDOCS=	*
 
 OPTIONS_DEFINE=	DOCS
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/sbin/tayga
 	${INSTALL_DATA} ${WRKSRC}/tayga.conf.example ${STAGEDIR}${PREFIX}/etc
 
 post-install-DOCS-on:
 	cd ${WRKSRC}/docs && ${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>