diff --git a/prefs.php b/prefs.php
index 68bc6eb92..c72707551 100644
--- a/prefs.php
+++ b/prefs.php
@@ -72,6 +72,8 @@
 
 <div id="piggie" class="invisible">&nbsp;</div>
 
+<iframe id="backReqBox"></iframe>
+
 <script type="text/javascript">
 if (document.addEventListener) {
 	document.addEventListener("DOMContentLoaded", init, null);