--- /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml	2013-12-29 14:07:43.000000000 +0100
+++ /tmp/xfce4-keyboard-shortcuts.xml	2014-03-04 14:19:06.248276587 +0100
@@ -11,6 +11,7 @@
         <property name="startup-notify" type="bool" value="true"/>
       </property>
       <property name="&lt;Primary&gt;&lt;Alt&gt;Delete" type="string" value="xflock4"/>
+      <property name="&lt;Primary&gt;&lt;Alt&gt;l" type="string" value="xflock4"/>
       <property name="XF86Display" type="string" value="xfce4-display-settings --minimal"/>
       <property name="&lt;Super&gt;p" type="string" value="xfce4-display-settings --minimal"/>
       <property name="&lt;Primary&gt;Escape" type="string" value="xfdesktop --menu"/>