--- graphviz-2.6-r1.ebuild
+++ graphviz-2.6-r1.ebuild
@@ -11,7 +11,7 @@
 LICENSE="CPL-1.0"
 SLOT="0"
 KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ppc ~ppc-macos ~ppc64 ~s390 ~sh ~sparc ~x86 ~x86-fbsd"
-IUSE="cairo tcltk X static"
+IUSE="cairo tcl tk X static"
 
 RDEPEND=">=sys-libs/zlib-1.1.3
 	>=media-libs/libpng-1.2
@@ -43,8 +43,9 @@
 	econf --with-mylibgd \
 		--disable-dependency-tracking \
 		$(use_enable static) \
-		$(use_with tcltk tcl) \
-		$(use_with tcltk tk) \
+		$(use_with tcl) \
+		$(use_with tcl tclsh) \
+		$(use_with tk) \
 		$(use_with X x) || die "Configure Failed!"
 	emake || die "Compile Failed!"
 }