diff --git a/documentation/ref-manual/migration.xml b/documentation/ref-manual/migration.xml
index 811577bb6f..82120c672f 100644
--- a/documentation/ref-manual/migration.xml
+++ b/documentation/ref-manual/migration.xml
@@ -4738,9 +4738,9 @@ id=f4d4f99cfbc2396e49c1613a7d237b9e57f06f81'>commit message</ulink>.
             replacing its previous "memory resident mode" (i.e.
             <filename>oe-init-build-env-memres</filename>).
             Now you only need to set
-            <filename>BB_SERVER_TIMEOUT</filename> to a timeout
-            (in seconds) and BitBake's server stays resident for that
-            amount of time between invocations.
+            <link linkend='var-BB_SERVER_TIMEOUT'><filename>BB_SERVER_TIMEOUT</filename></link>
+            to a timeout (in seconds) and BitBake's server stays resident for
+            that amount of time between invocations.
             The <filename>oe-init-build-env-memres</filename> script has been
             removed since a separate environment setup script is no longer
             needed.
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index e31aa21a3e..a79fc2ec87 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -977,6 +977,32 @@
             </glossdef>
         </glossentry>
 
+        <glossentry id='var-BB_SERVER_TIMEOUT'><glossterm>BB_SERVER_TIMEOUT</glossterm>
+            <info>
+                BB_SERVER_TIMEOUT [doc] = "Specifies the time (in seconds) after which to unload the BitBake server due to inactivity."
+            </info>
+            <glossdef>
+                <para role="glossdeffirst">
+<!--                <para role="glossdeffirst"><imagedata fileref="figures/define-generic.png" /> -->
+                    Specifies the time (in seconds) after which to unload the
+                    BitBake server due to inactivity.
+                    Set <filename>BB_SERVER_TIMEOUT</filename> to determine how
+                    long the BitBake server stays resident between invocations.
+                </para>
+
+                <para>
+                    For example, the following statement in your
+                    <filename>local.conf</filename> file instructs the server
+                    to be unloaded after 20 seconds of inactivity:
+                    <literallayout class='monospaced'>
+     BB_SERVER_TIMEOUT = "20"
+                    </literallayout>
+                    If you want the server to never be unloaded, set
+                    <filename>BB_SERVER_TIMEOUT</filename> to "-1".
+                </para>
+            </glossdef>
+        </glossentry>
+
         <glossentry id='var-BBCLASSEXTEND'><glossterm>BBCLASSEXTEND</glossterm>
             <info>
                 BBCLASSEXTEND[doc] = "Allows you to extend a recipe so that it builds variants of the software. Common variants for recipes are 'native', 'cross', 'nativesdk' and multilibs."