How to exclude reflections?

Hi Everyone! I have a question. I render an image with the aplha channel and the floor with VRayMtlWrapper for to get the shadow. Everything is fine but… I have the reflection in my object. How can I exclude the floor in the reflections? Look…

I just want the HDRI in the reflections. Is that possible?

Thanks!!!

right-click → properties (NOT vray properties, but the regular max object properties) and untick “Visible to reflection”

Regards,
Thorsten

Thank you so much!. It work!