product-archives.php文件中的Woocommerce（shop）标题

Question

I read that it is possible to place alternative header into woocommerce pages using get_header('shop'); in product-archives.php template in my custom theme. In order to make it work I need to make copy of header.php file and rename it to header-shop.php. It should be also located in same folder as header.php file. Unfortunately I can't get this to work. Anything I am missing if somebody notices that would be great help.