diff --git a/devel/libthai/Makefile b/devel/libthai/Makefile
index 4209f4c59faa..f90117b8f9a7 100644
--- a/devel/libthai/Makefile
+++ b/devel/libthai/Makefile
@@ -1,35 +1,36 @@
 # New ports collection makefile for:    libthai
 # Date created:        28 March 2006
 # Whom:                Thawatchai Piyawat <piyawat@usablelabs.com>
 #
 # $FreeBSD$
 #
 
 PORTNAME=	libthai
 PORTVERSION=	0.1.5
 PORTREVISION=	3
 CATEGORIES=	devel
 MASTER_SITES=	http://www.usablelabs.com/download/
 
 MAINTAINER=	piyawat@usablelabs.com
 COMMENT=	Thai language support library
 
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 USE_GMAKE=	yes
 USE_AUTOTOOLS=	automake:15 autoconf:262 libtool:15
+MAKE_JOBS_UNSAFE=	yes
 
 ALL_TARGET=	all check
 
 MAN3=	libthai.3 thctype.3 wtt.3
 
 post-patch:
 	@${REINPLACE_CMD} -E 's,^(pkgconfigdir = ).*$$,\1$$(prefix)/libdata/pkgconfig,' \
 		${WRKSRC}/Makefile.am
 	@${REINPLACE_CMD} -e 's,15,-1.5,' -e 's,259,-2.62,' \
 		${WRKSRC}/autogen.sh
 
 pre-configure:
 	@cd ${WRKSRC} && ${SH} autogen.sh
 
 .include <bsd.port.mk>