public function makePrivate()
    {
        if (!$this->connection->getCdnEnabled()) {
            throw new Exceptions\CDNNotEnabled();
        }

        $this->cdnUri = null;
        $this->connection->makeCdnRequest(
            Client::POST,
            array($this->name),
            array('X-CDN-Enabled' => 'False')
        );
    }