Unicode problem with Nancy 0.9

TestModule.cs

    public class TestModule :NancyModule
    {
        public TestModule()
        {
            Get["/failing"] = _ => "åäö";

            Get["/working"] = _ =>
                                  {
                                      Response resp = "åäö";
                                      resp.ContentType += "; charset=utf-8";
                                      return resp;
                                  };
        }
    }