diff --git a/net/tayga/Makefile b/net/tayga/Makefile
index c43973bdbc48..c7e62b82ce50 100644
--- a/net/tayga/Makefile
+++ b/net/tayga/Makefile
@@ -1,28 +1,31 @@
 PORTNAME=	tayga
 DISTVERSION=	0.9.5
 CATEGORIES=	net
 
 PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${PORTNAME}/commit/
 PATCHFILES=	49f64b0.patch:-p1 \
 		32cd0a7.patch:-p1 \
 		b62e33f.patch:-p1 \
 		6c298f2.patch:-p1
 
 MAINTAINER=	ports@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
 MAKE_ENV=	RELEASE=${DISTVERSION}
 CFLAGS+=	-DTAYGA_CONF_PATH='\"${PREFIX}/etc/tayga.conf\"'
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/sbin/tayga
 	${INSTALL_DATA} ${WRKSRC}/tayga.conf.example ${STAGEDIR}${PREFIX}/etc
 
 .include <bsd.port.mk>