diff --git a/devel/kscope/Makefile b/devel/kscope/Makefile
index ad3b782f60f4..c9c7e69a0026 100644
--- a/devel/kscope/Makefile
+++ b/devel/kscope/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.32 2012/02/06 12:39:52 wiz Exp $
+# $NetBSD: Makefile,v 1.33 2012/02/08 04:01:06 sbd Exp $
 #
 
 DISTNAME=		kscope-1.6.0
@@ -16,7 +16,10 @@ DEPENDS+=		cscope>=15.6:../../devel/cscope
 DEPENDS+=		exctags>=5.5.4:../../devel/exctags
 
 GNU_CONFIGURE=		yes
-USE_TOOLS+=		gmake flex pkg-config
+SET_LIBDIR=		yes
+USE_TOOLS+=		gmake flex pkg-config bison
+
+CONFIGURE_ENV+=		ac_cv_prog_HAVE_YACC=yes
 
 USE_LIBTOOL=		yes
 USE_LANGUAGES=		c c++