Index: head/mail/libsieve/Makefile
===================================================================
--- head/mail/libsieve/Makefile	(revision 528217)
+++ head/mail/libsieve/Makefile	(revision 528218)
@@ -1,23 +1,23 @@
 # Created by: Mark Starovoytov <mark_sf@kikg.ifmo.ru>
 # $FreeBSD$
 
 PORTNAME=	libsieve
 PORTVERSION=	2.3.1
 PORTREVISION=	2
 CATEGORIES=	mail
 MASTER_SITES=	GHC
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Library for parsing, sorting, and filtering mail
 
 LICENSE=	LGPL21
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	sodabrew
 
-USES=		bison gmake libtool pathfix
+USES=		bison:alias gmake libtool pathfix
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 
 .include <bsd.port.mk>