diff --git a/extensions/wallet/cookieviewer/CookieViewer.js b/extensions/wallet/cookieviewer/CookieViewer.js
index 089198d9e2cb..472d352e3580 100644
--- a/extensions/wallet/cookieviewer/CookieViewer.js
+++ b/extensions/wallet/cookieviewer/CookieViewer.js
@@ -492,7 +492,7 @@ function DeleteItemSelected(tree, prefix, kids) {
   var delnarray = [];
   var rv = "";
   var cookietree = document.getElementById(tree);
-  selitems = cookietree.selectedItems;
+  var selitems = cookietree.selectedItems;
   for(i = 0; i < selitems.length; i++) 
   { 
     delnarray[i] = document.getElementById(selitems[i].getAttribute("id"));