rspec users - Jan 2011 - undefined method `stub!' for

Hey,

Using RSpec 2.4.0 with Rails 3.0.3 I''m doing this:

rake spec:models and things works well.

Now, when doing  rspec spec/models/spot_spec.rb that has
Spot.stub! :test1

I get:  undefined method `stub!'' for Spot:Class

Am I missing something here?