iOS programatically making buttons and the words dont multiline

[Chirone]

please note that i have to make this for 2.2.1 so telling me to use button.label.numberOfLines isn't any help

in IB i could tell the button to use line breaks with word wrap and make the button vertically bigger to see all the text

but doing it programatically it doesn't just happen...
to make the button i type:

UIButton *buttonView = [[UIButton alloc] initWithFrame: frame];
[buttonView addTarget: target action: sel forControlEvents: UIControlEventTouchUpInside];	
	[buttonView setTitle: NSLocalizedString(@"buttonKey", @"") forState: UIControlStateNormal];
buttonView.lineBreakMode = UILineBreakModeCharacterWrap;

when in english the string shows up fine, it's all there
when in spanish it only shows one line...
how can i make the button realise it needs to draw the text on multiple lines?