Index: /trunk/doc/manual/en_US/user_VBoxManage.xml
===================================================================
--- /trunk/doc/manual/en_US/user_VBoxManage.xml	(revision 81234)
+++ /trunk/doc/manual/en_US/user_VBoxManage.xml	(revision 81235)
@@ -1035,4 +1035,13 @@
             enables or disables the use of the unrestricted guest mode
             feature for executing your guest.
+          </para>
+        </listitem>
+
+        <listitem>
+          <para>
+            <computeroutput>--nested-hw-virt on|off</computeroutput>: If
+            hardware virtualization is enabled, this setting enables or
+            disables passthrough of hardware virtualization features to
+            the guest. See <xref linkend="nested-virt" />.
           </para>
         </listitem>