diff --git a/documentation/poky-ref-manual/ref-structure.xml b/documentation/poky-ref-manual/ref-structure.xml
index 75bc2ebd50..ece4894528 100644
--- a/documentation/poky-ref-manual/ref-structure.xml
+++ b/documentation/poky-ref-manual/ref-structure.xml
@@ -217,9 +217,13 @@
 
         <para>
             Edit this file to set the <filename><link linkend='var-MACHINE'>MACHINE</link></filename> 
-            for which you want to build, which package types you
-            wish to use (<filename>PACKAGE_CLASSES</filename>), or where you want to downloaded files
-            (<filename><link linkend='var-DL_DIR'>DL_DIR</link></filename>).
+            for which you want to build, which package types you wish to use 
+            (<link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>), 
+            where you want to downloaded files
+            (<filename><link linkend='var-DL_DIR'>DL_DIR</link></filename>), 
+            and how you want your host machine to use resources 
+            (<link linkend='var-BB_NUMBER_THREADS'><filename>BB_NUMBER_THREADS</filename></link> and 
+            <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>).
         </para>
     </section>