Not yet working with Contact Form 7 v4.8

I use this plugin with previous versions of WP and Contact Form 7. But after updating to Contact form 7 v.4.8 the GET var was not send with my form anymore.

So I have installed an older version of Contact Form 7 (v. 4.7) and everything is working fine. Hopefully this plugin get updated soon, so I can update Contact Form 7 to the latest version.

Keep up the good work!