Fix Rails 5.1 compat
Fix Rails 5.1 compat

jsonapi-suite/jsonapi_compliable,richmolj/jsonapi_compliable,richmolj/jsonapi_compliable,richmolj/jsonapi_compliable,jsonapi-suite/jsonapi_compliable,jsonapi-suite/jsonapi_compliable,jsonapi-suite/jsonapi_suite,jsonapi-suite/jsonapi_suite,jsonapi-suite/jsonapi_suite