timing belt change Problem
 

I have an 05 2.4l sonata.
I changed the timing belt before, this ismy second time.
This time while taking the crankshaft sprocket off the timing gear came off with it? I'm not sure how to go about re timing the motor?

Any help woudl be greatly appreciated? It doesnt seem like the cam sprockets moved at all and the belt seems to have stayed in place as well.

Can I just put the sprocket back on and turn it to its timing mark?