Prestashop adding product using module, cant force product_id

As topic says i have problem with adding product (by using product class). Everything works fine but even if i specify $product->id = 1234; it doest save it with this id, it just autoincrements products in database. But i really need to insert my own product_id into database (since i import products from ground strone database and they'll need to be updated often) Here is my code: ``` $langId = (int) (Configuration::get('PS_LANG_DEFAULT')); $p = new Product($prod['towar_id']); $p->id = $prod['towar_id']; $p->name = array($langId => $prod['nazwa']); $p->ean13 = $prod['kod']; $p->id_category_default = 6; $p->category = array(6); $p->link_rewrite = array($langId => Tools::link_rewrite($prod['nazwa'])); $p->weight = $prod['ile_kg_litrow']; $p->quantity = $prod['magazyny']['magazyn']['stan_magazynu']; $p->price = $prod['cena_detal']; $p->add(); ``` So is there any way to insert my own product id ?