How to use self-uploaded image in Terraform

I try to load my own image (uploaded to Image Manger) in Terraform code like this:

resource "profitbricks_server" "webserver" {
    name         = "webserver"
    datacenter_id     = "${profitbricks_datacenter.main.id}"
    cores             = 1
    ram               = 1024
    availability_zone = "AUTO"
    cpu_family        = "AMD_OPTERON"
    volume {
        name       = "system"
        image_name = "_uuid_of_my_image_"
        size       = 60
        disk_type  = "HDD"
        availability_zone = "AUTO"
        image_password = "password"
    }
}

But it complains

  "httpStatus" : 422,
  "messages" : [ {
    "errorCode" : "100",
    "message" : "[(root).entities.volumes.items.[0].properties.image] Not a public Profitbricks image:_uuid_of_my_image_"
  }

Does this mean the self-uploaded images are not supported in Terraform-ProfitBricks provider?