Terraform genesyscloud_routing_queue skills block failing with 400

Quick question about defining skills in genesyscloud_routing_queue.

I keep hitting a 400 Bad Request when applying this config:

resource "genesyscloud_routing_queue" "om_queue" {
 name = "Open Messaging Queue"
 skills {
 name = "support"
 }
}

The error says skills is not a valid argument for this resource version. am I missing a nested block or is the schema wrong?