PropertyChangedEventHandler is not marked as serializable

My data-transfer-objects implement INotifyPropertyChanged, which was giving me a problem whenever I tried to serialise them over a Remoting session.  If you try to add [NonSerialized] to the event you get an error informing you that you can only apply this attribute to fields, and not properties.

The solution is pretty simple, I think the .NET compiler should do this by default.

[NonSerialized]
PropertyChangedEventHandler propertyChanged;
public event PropertyChangedEventHandler PropertyChanged
{
    add { propertyChanged += value; }
    remove { propertyChanged -= value; }
}