Index: uc_wishlist.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/uc_wishlist/uc_wishlist.module,v
retrieving revision 1.1.2.1
diff -u -p -r1.1.2.1 uc_wishlist.module
--- uc_wishlist.module	22 Feb 2010 15:50:46 -0000	1.1.2.1
+++ uc_wishlist.module	29 Oct 2010 12:33:56 -0000
@@ -653,7 +653,7 @@ function uc_wishlist_add_item($nid, $qty
     $data = array('module' => 'uc_product');
   }
 
-  if (!in_array($node->type, array_keys(uc_product_node_info()))) {
+  if (!uc_product_is_product($node)) {
     drupal_set_message(t('!title is not a product. Unable to add to wish list.', array('!title' => $node->title)), 'error');
     return;
   }