Getting the error invalid option '--asroot' on packages

When trying to install the package kodi-standalone-service however after I get prompted for editing the PKGBUILD then I get this error.

makepkg: invalid option '--asroot'
Unable to read PKGBUILD

I can't seem to find anything on this with google. This also happens in the ISL package as well. (BTW I'm using Yaourt to install this)