diff --git a/documentation/adt-manual/adt-package.xml b/documentation/adt-manual/adt-package.xml
index e353b5cd84..26b5dc18d8 100644
--- a/documentation/adt-manual/adt-package.xml
+++ b/documentation/adt-manual/adt-package.xml
@@ -1,5 +1,6 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
+[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
 
 <chapter id='adt-package'>
 <title>Optionally Customizing the Development Packages Installation</title>
@@ -54,7 +55,7 @@
 
     <note>
         For build performance information related to the PMS, see
-        <ulink url='http://www.yoctoproject.org/docs/1.1.1/poky-ref-manual/poky-ref-manual.html#ref-classes-package'>Packaging - <filename>package*.bbclass</filename></ulink> in The Yocto Project Reference Manual.
+        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-package'>Packaging - <filename>package*.bbclass</filename></ulink> in The Yocto Project Reference Manual.
     </note>
 
     <para>