diff --git a/doc/config-reference/block-storage/drivers/vmware-vmdk-driver.xml b/doc/config-reference/block-storage/drivers/vmware-vmdk-driver.xml
index 97c3f2323e..0695c4e0b7 100644
--- a/doc/config-reference/block-storage/drivers/vmware-vmdk-driver.xml
+++ b/doc/config-reference/block-storage/drivers/vmware-vmdk-driver.xml
@@ -274,6 +274,14 @@
             <para>Restore backup to new or existing volume. (Supported only
             if the existing volume doesn't contain snapshots.)</para>
           </listitem>
+          <listitem>
+            <para>Change the volume type of a volume.</para>
+            <note>
+                <para>This operation is supported only if the volume state is
+                    <literal>available</literal>.
+                </para>
+            </note>
+          </listitem>
         </itemizedlist>
         <note>
           <para>Although the VMware ESX VMDK driver supports these