diff --git a/documentation/poky-ref-manual/ref-variables.xml b/documentation/poky-ref-manual/ref-variables.xml
index f91581ab0c..005b961a84 100644
--- a/documentation/poky-ref-manual/ref-variables.xml
+++ b/documentation/poky-ref-manual/ref-variables.xml
@@ -35,7 +35,7 @@
 <!--               <link linkend='var-glossary-q'>Q</link> -->
        <link linkend='var-RCONFLICTS'>R</link> 
        <link linkend='var-S'>S</link> 
-       <link linkend='var-TARGET_ARCH'>T</link> 
+       <link linkend='var-T'>T</link> 
 <!--               <link linkend='var-glossary-u'>U</link> -->
 <!--               <link linkend='var-glossary-v'>V</link> -->
        <link linkend='var-WORKDIR'>W</link> 
@@ -2169,6 +2169,25 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
 
     <glossdiv id='var-glossary-t'><title>T</title>
 
+        <glossentry id='var-T'><glossterm>T</glossterm>
+            <glossdef>
+                <para>This variable points to a directory were Bitbake places temporary 
+                    files when building a particular package. 
+                    It is typically set as follows:
+                    <literallayout class='monospaced'>
+     T = ${WORKDIR}/temp
+                    </literallayout>
+                    The <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
+                    is the directory into which Bitbake unpacks and builds the package. 
+                    The default <filename>bitbake.conf</filename> file sets this variable.</para>
+                    <para>The <filename>T</filename> variable is not to be confused with 
+                    the <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link> variable,
+                    which points to the root of the directory tree where Bitbake 
+                    places the output of an entire build.
+                </para>
+            </glossdef>
+        </glossentry>
+
         <glossentry id='var-TARGET_ARCH'><glossterm>TARGET_ARCH</glossterm>
             <glossdef>
                 <para>The architecture of the device being built.