Can you call private functions from within a model class?

[eluser]Dr. Seuss[/eluser]
I have code like this:

class Tpldata extends Model {

function getData(){
....
$stuff = makeXML();
....
}

function _makeXML(){
return $sXML;
}

}

I get an error saying:

"Fatal Error. Call to undefined function _makeXML..."

Can models not use private functions, only controllers?

TIA

[eluser]Armchair Samurai[/eluser]
Try $stuff = $this->_makeXML();

[eluser]Dr. Seuss[/eluser]
Wow. I am an idiot. Now I know.

Thank you very much!