diff --git a/doc/admin-guide-cloud/compute/section_compute-configure-migrations.xml b/doc/admin-guide-cloud/compute/section_compute-configure-migrations.xml
index 4acf4d0776..9090569cde 100644
--- a/doc/admin-guide-cloud/compute/section_compute-configure-migrations.xml
+++ b/doc/admin-guide-cloud/compute/section_compute-configure-migrations.xml
@@ -101,6 +101,13 @@
             or live migration will not work correctly.
             </para>
           </listitem>
+          <listitem>
+            <para>You must specify the <literal>instances_path</literal>
+            in each node that runs nova-compute.
+            The mount point for <literal>instances_path</literal> must be the same value for each node,
+            or live migration will not work correctly.
+            </para>
+          </listitem>
         </itemizedlist>
       </note>
       <section xml:id="section_example-compute-install">