diff --git a/reference/dom/domxpath/registerphpfunctions.xml b/reference/dom/domxpath/registerphpfunctions.xml
index 4df8bd3279..ab33a045b8 100644
--- a/reference/dom/domxpath/registerphpfunctions.xml
+++ b/reference/dom/domxpath/registerphpfunctions.xml
@@ -183,7 +183,7 @@ sgml-indent-step:1
 sgml-indent-data:t
 indent-tabs-mode:nil
 sgml-parent-document:nil
-sgml-default-dtd-file:"../../../../manual.ced"
+sgml-default-dtd-file:"~/.phpdoc/manual.ced"
 sgml-exposed-tags:nil
 sgml-local-catalogs:nil
 sgml-local-ecat-files:nil