QML cannot use registered enums as signal handler parameters

I have declared an enum in a class and use it as an argument in a signal. I can use the enum in QML, but I cannot read the parameter in the signal handler. Example:

class MyObject {
Q_OBJECT
Q_ENUMS(MyEnum)
Q_PROPERTY(MyEnum value READ value NOTIFY valueChanged)
public:
enum MyEnum

;
signals:
void valueChanged(MyEnum value);
}

Qml file
----------
MyObject {
onValueChanged: console.debug("Value is " + value)
}

This fails with the following output:
QMetaProperty::read: Unable to handle unregistered datatype 'MyEnum' for property 'QDeclarativeBoundSignalParameters::value'