XLabs RadioButton Text padding

Hi guys, does anybody knows how to add some padding between the radio button and the text,
I'm using the XLabs BindableRadioGroup this way:

<StackLayout Orientation="Vertical" Padding="20">
      <controls:BindableRadioGroup x:Name="rdoHours" 
        ItemsSource="{Binding Path=Hours.Values}" 
        SelectedIndex="{Binding SelectedIndex}" 
        VerticalOptions="Start" />
 </StackLayout>

but the text is just beside the RadioButton,

thanks!