diff --git a/calendar/lightning/content/messenger-overlay-preferences.xul b/calendar/lightning/content/messenger-overlay-preferences.xul
index 2955149b58..b5759aa707 100644
--- a/calendar/lightning/content/messenger-overlay-preferences.xul
+++ b/calendar/lightning/content/messenger-overlay-preferences.xul
@@ -17,6 +17,7 @@
 
     <prefwindow id="MailPreferences">
         <prefpane id="paneLightning"
+                  insertbefore="paneAdvanced"
                   label="&lightning.preferencesLabel;"
                   onpaneload="gCalendarGeneralPane.init(); gAlarmsPane.init();
                               gCategoriesPane.init(); gViewsPane.init();