How to switch Void Linux to "linux-lts" kernel?

I already installed the "linux-lts" and "linux-lts-headers" but can't see it as an option to pick up in Grub login screen. Yes I've visited the page: https://docs.voidlinux.org/config/kernel.html And already run "sudo xbps-reconfigure linux-lts" in a terminal. What am I missing? Thank you.