Private Repos

I'm getting permissions issue when using this on a private fork of a private repo (hook is on the child, not the parent). Is that expected to work?

This is the message
Status 200

Uhh, error: {"message":"Validation Failed","errors":[{"message":"The listed users and repositories cannot be searched either because the resources do not exist or you do not have permission to view them.","resource":"Search","field":"q","code":"invalid"}],"documentation_url":"https://developer.github.com/v3/search/"}