RDLC Report - Change Orientation

I have been creating an RDLC report, which is supposed to create Labels 6cm x 2,5cm. When I define my report size it always puts the report in landscape (because the width is greater than the height, I assume), now the label printer expects my report definition to be 6cm wide and 2,5cm high, when in portrait mode.

How do I create an RDLC report oriented in portrait mode, being 6cm wide and 2,5cm high?