--- opensp-1.5.2.ebuild.orig	2006-06-20 09:16:56.000000000 +0200
+++ opensp-1.5.2.ebuild	2006-06-20 09:18:40.000000000 +0200
@@ -16,7 +16,7 @@
 IUSE="doc nls"
 
 DEPEND="nls? ( >=sys-devel/gettext-0.14.5 )
-	doc? ( app-text/xmlto )"
+	doc? ( app-text/xmlto =app-text/docbook-xml-dtd-4.1.2* )"
 
 RDEPEND=""