diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index a6d4fa2b37..ae39bf2488 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -5471,6 +5471,26 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
             </glossdef>
         </glossentry>
 
+        <glossentry id='var-ROOT_HOME'><glossterm>ROOT_HOME</glossterm>
+            <glossdef>
+                <para>
+                    Defines the root home directory.
+                    By default, this directory is set as follows in the
+                    BitBake configuration file:
+                    <literallayout class='monospaced'>
+     ROOT_HOME ??= "/home/root"
+                    </literallayout>
+                    You can override the default by setting the variable
+                    in any layer or in the
+                    <filename>local.conf</filename> file using the following
+                    form:
+                    <literallayout class='monospaced'>
+     ROOT_HOME ?= "&lt;path&gt;"
+                    </literallayout>
+                </para>
+            </glossdef>
+        </glossentry>
+
         <glossentry id='var-ROOTFS'><glossterm>ROOTFS</glossterm>
             <glossdef>
                 <para>