Terms of Service Registration Form Validation not Working

Terms of Service doesn't stop member registration if "I Agree" is unchecked.

I have TOS installed network wide, and the textarea with my terms does appear on the registration form, but it doesn't validate that the checkbox was checked before submitting the registration form. It doesn't show a message stating that the box is unchecked either.

Note: I do have the Membership plugin installed to handle the registrations.

The plugin is supposed to require that the new user check the box before registering, correct?

Can someone help me get this working?