Parking Brake Button doesn't engage

[bankerkys]

The handbrake/emergency brake in my 2003 X5 doesn't work (I just bought the X5). The issue is that the handle doesn't engage when you pull it up. I removed the leather boot and handle cover, and upon moving the handbrake button, I was able to pull the button out! It has a long slender metal rod (w/ sprig) attached that goes into a hook-like piece, and that hook is broken.

Does anyone know if I can get this part online? I have been searching via Google, but have come up with nothing. The dealer got to me for a grand after I bought this X5 for a number of repairs, so I'd like to take care of this one myself. Any help is appreciated.