Bump map problem

As you can see, I am trying to make a tyrannosaurus Rex inspierd by the gorgosaurus form the new movie Walking With Dinosaurs 3D (worst script, best graphics) but I’m struck a problem.

The bump node does not connect to the displacement input
See http://blender.stackexchange.com/questions/8129/how-to-add-bump-to-shader

Thank you so much! I’ve been looking for days on how to solve this. Now I just feel like an idiot :confused: