G-Sync Enabled on a none G-Sync monitor

So I've recently bought a laptop.
In the spec it said that the screen is not G-Sync.
However in the nVidia control panel I still have the option to enable G-Sync.
I read somewhere that if the monitor does not support G-Sync, the option shouldn't be available in the control center, hence why I'm confused and want to clear things up.

Will enabling G-Sync not have any effect?
Or is the monitor spec wrong?

G-Sync Enabled on a none G-Sync monitor