Can't UnMarshal into struct with json.RawMessage type

[darwinyip]

I can't seem to be able to do the following:

var data = []byte(`{
  "data": {
    "attributes": {
      "values": ["abc"]
    },
    "type": "things"
  }
}`)

type Thing struct {
	ID string `jsonapi:"primary,things"`
	Values json.RawMessage `jsonapi:"attr,values"`
}

var thing Thing
r := bytes.NewReader(data)
if err := jsonapi.UnmarshalPayload(r, &thing); err != nil {
	panic(err)
}

I get panic: data is not a jsonapi representation of '*main.Thing'