diff --git a/devel/splint/Makefile b/devel/splint/Makefile
index 0b477b963fef..49df11d5a206 100644
--- a/devel/splint/Makefile
+++ b/devel/splint/Makefile
@@ -1,23 +1,24 @@
 PORTNAME=	splint
 PORTVERSION=	3.1.2
 CATEGORIES=	devel security
 MASTER_SITES=	http://www.splint.org/downloads/
 EXTRACT_SUFX=	.src.tgz
 
 MAINTAINER=	lwhsu@FreeBSD.org
 COMMENT=	Tool for statically checking sourcecode for security vulnerabilities
 WWW=		https://www.splint.org/
 
 LICENSE=	GPLv2+
 
 USES=		gmake
 GNU_CONFIGURE=	yes
+CONFIGURE_ENV=	BISON=no
 MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	@${REINPLACE_CMD} -e \
 		's|%%PREFIX%%|${PREFIX}|g' ${WRKSRC}/src/Headers/constants.h
 	${FIND} ${WRKSRC} -name Makefile.in | ${XARGS} \
 		 ${REINPLACE_CMD} -e '/^pkgdatadir =/s|=.*|=${DATADIR}|'
 
 .include <bsd.port.mk>