How to use CallerMemberName in a CLS compliant assembly

I have used the CallerMemberName attribute in a class's implementation of INotifyPropertyChanged as described on MSDN as follows:

    public event PropertyChangedEventHandler PropertyChanged;

    // This method is called by the Set accessor of each property.
    // The CallerMemberName attribute that is applied to the optional propertyName
    // parameter causes the property name of the caller to be substituted as an argument.
    private void NotifyPropertyChanged([CallerMemberName] String propertyName = "")
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

However, using default parameters is not CLS compliant. But CallerMemberName can only be used with parameters that have default values... Is there a commonly used way to solve this inconsistency without having to call the notify method with a hard-coded string argument?