Set a label on a marker with iOS map links api

I'm trying to set a label on a map marker using the map links api. According to apple's docs if I use the 'q' param with the 'address' param it will take the 'q' param as a label. But I can't make it to work.

Blockquote The q parameter can also be used as a label if the location is explicitly defined in the ll or address parameters docs.

This is the url I've tried

http://ift.tt/2bgCeeB

I want it to say 'Blah' as the marker's label.

Thanks.