diff --git a/devel/flex/Makefile b/devel/flex/Makefile
index 84079d4c7080..2fe2dd7c4d2b 100644
--- a/devel/flex/Makefile
+++ b/devel/flex/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.13 2004/01/20 12:13:28 agc Exp $
+# $NetBSD: Makefile,v 1.14 2004/02/24 15:17:54 grant Exp $
 
 DISTNAME=		flex-2.5.4a
 CATEGORIES=		lang
@@ -10,12 +10,8 @@ COMMENT=		Fast clone of lex(1), the lexical scanner generator
 
 WRKSRC=			${WRKDIR}/flex-2.5.4
 GNU_CONFIGURE=		YES
+USE_GNU_TOOLS+=		yacc
 
 TEST_TARGET=		check
 
-.if !exists(/usr/bin/yacc)
-BUILD_DEPENDS+=		bison-[0-9]*:../../devel/bison
-YACC=			${PREFIX}/bin/bison -y
-.endif
-
 .include "../../mk/bsd.pkg.mk"