Child UIView underneath the translucent bar of UINavigationController

The root view of my UINavigationViewController sits nicely underneath the the开发者_如何学C translucent nav bar. However when I push child views, they get aligned below the nav bar. How come?

The UINavigationController's view has its origin below the navbar, most likely to make sure the controller always works the same way. Maybe this'll help: Navigation Controller Transparent Bar Style is not working