Facebook Conect ignore "Terms Of Service" plugin

Hi, I have recently installed the plugin "Terms Of Service" and works great! https://premium.wpmudev.org/project/terms-of-service/

But my problem is when the user register with your facebook account no needs select the terms & conditions checkbox.

I add a screenshot of my register page: http://postimg.org/image/bp46m6dtp/

My site is redminka.com

Best regards