diff --git a/documentation/poky-ref-manual/ref-varlocality.xml b/documentation/poky-ref-manual/ref-varlocality.xml
index 0a2477c123..22a97a00be 100644
--- a/documentation/poky-ref-manual/ref-varlocality.xml
+++ b/documentation/poky-ref-manual/ref-varlocality.xml
@@ -1,5 +1,6 @@
 <!DOCTYPE appendix 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; ] >
 
 <appendix id='ref-varlocality'>
     <title>Reference: Variable Context</title>