Add Wireguard to the build: not working?

[ElVasquito]

Hello, I tried to enable Wireguard in the build and although it builds OK and I can generate keys with the wg command, when I tried to load the kernel module with "insmod wireguard.ko", I get:

insmod: can't insert 'wireguard.ko': unknown symbol in module, or unknown parameter

And from dmesg:

<4>wireguard: Unknown symbol ip_tunnel_get_stats64 (err 0)

Is it possible to make this work? TIA