diff --git a/dev-util/gtk_doc/gtk_doc-1.20.recipe b/dev-util/gtk_doc/gtk_doc-1.20.recipe
index 7bfe26a8b..c0a69713d 100644
--- a/dev-util/gtk_doc/gtk_doc-1.20.recipe
+++ b/dev-util/gtk_doc/gtk_doc-1.20.recipe
@@ -27,7 +27,7 @@ PROVIDES="
 "
 
 BUILD_REQUIRES="
-	docbook_xml_dtd == 4.3
+	docbook_xml_dtd
 	docbook_xsl_stylesheets
 "