Index: kernel/shop/basket.php
===================================================================
--- kernel/shop/basket.php	(revision 23007)
+++ kernel/shop/basket.php	(working copy)
@@ -54,7 +54,7 @@
     else
         $optionList = array();
 
-    $http->setSessionVariable( "FromPage", $_SERVER['HTTP_REFERER'] );
+    $http->setSessionVariable( "FromPage", eZURI::decodeURL( $_SERVER['HTTP_REFERER'] ) );
     $http->setSessionVariable( "AddToBasket_OptionList_" . $objectID, $optionList );
 
     $module->redirectTo( "/shop/add/" . $objectID );