             context("with conversion") {
                 context("with no option") {
                     it("binds converted value") {
-                        observation.convert(SimpleConverter.self).bindTo(binding)
+                        observation.convert(AddExclamationConverter.self).bindTo(binding)
 
                         expect(binding.receivedBinding) == "hey hello world!"
                     }

                            .convert(ComplexConverter.self) { .Uppercase }
                            .bindTo(binding)

                        expect(binding.receivedBinding) == "HEY HELLO WORLD!"
                    }
                }
            }

        }
    }

    class AddExclamationConverter: Converter {
        required init() {

        }
