# File lib/aws/elb/listener.rb, line 74
      def server_certificate= server_certificate

        arn = server_certificate.is_a?(IAM::ServerCertificate) ?
          server_certificate.arn : server_certificate

        client.set_load_balancer_listener_ssl_certificate(
          :load_balancer_name => load_balancer.name,
          :load_balancer_port => port,
          :ssl_certificate_id => arn)

        nil

      end