openSystemURL for maps

Is this a bug? Why doesn't it open the watchKit installed maps app?


        let url = "http://maps.apple.com/?ll=50.894967,4.341626"
        let locationURL = NSURL(string:url)!
        WKExtension.sharedExtension().openSystemURL(locationURL)


It seems like this is valid and should open the Watch's maps app.

openSystemURL for maps
 
 
Q