diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 0f3842be18..1d9e8788f3 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -13568,6 +13568,28 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
             </glossdef>
         </glossentry>
 
+        <glossentry id='var-SYSROOT_DESTDIR'><glossterm>SYSROOT_DESTDIR</glossterm>
+            <info>
+                SYSROOT_DESTDIR[doc] = "Points to the temporary work directory (default ${WORKDIR}/sysroot-destdir) where the files that will be populated into the sysroot are assembled during the do_populate_sysroot task."
+            </info>
+            <glossdef>
+                <para role="glossdeffirst">
+<!--                <para role="glossdeffirst"><imagedata fileref="figures/define-generic.png" /> -->
+                    Points to the temporary directory under the work directory
+                    (default
+                    <filename>${</filename><link linkend='var-WORKDIR'><filename>WORKDIR</filename></link><filename>}/sysroot-destidir</filename>)
+                    where the files
+                    that will be populated into the sysroot are assembled
+                    during the
+                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
+                    task.
+                    <literallayout class='monospaced'>
+     SYSROOT_DESTDIR ?= "console=ttyS0,115200"
+                    </literallayout>
+                </para>
+            </glossdef>
+        </glossentry>
+
         <glossentry id='var-SYSROOT_DIRS'><glossterm>SYSROOT_DIRS</glossterm>
             <info>
                 SYSROOT_DIRS[doc] = "Directories that are staged into the sysroot by the do_populate_sysroot task."