diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml
index e9032cd7bf..9312d873b4 100644
--- a/documentation/dev-manual/dev-manual-common-tasks.xml
+++ b/documentation/dev-manual/dev-manual-common-tasks.xml
@@ -3945,6 +3945,12 @@
                         <filename>libsecret</filename>, and
                         <filename>webkit</filename>).
                         </para></listitem>
+                    <listitem><para>
+                        Using QEMU in usermode might not work properly when
+                        running 64-bit binaries under 32-bit host machines.
+                        In particular, "qemumips64" is known to not work under
+                        i686.
+                        </para></listitem>
                 </itemizedlist>
             </para>
         </section>