You need to rewrite the method `_addItemToWishList` from the controller `Mage_Wishlist_IndexController` and replace the last line. Instead of $this->_redirect('*', array('wishlist_id' => $wishlist->getId())); You have to put: $this->_redirectReferer(); **[EDIT]**. [Here is an example](https://magento.stackexchange.com/a/10842/146) on how you can rewrite a controller. You need to rewrite (like I said) `Mage_Wishlist_IndexController`. The controller is found in `app/code/core/Mage/Wishlist/controllers/IndexController.php`.