I'm trying to extend my controllers with a global base controller as such:

class BaseController extends Zend_Controller_Action {
 // common controller actions
    public function listAction() {
        // do stuff
    }
}

class IndexController extends BaseController {
 // index controller specific actions
}

class LoginController extends BaseController {
 // login controller specific actions
}

But I get this error: PHP Fatal error: Class 'BaseController' not found in /var/www/Zend/project/application/controllers/IndexController.php on line 3

Any ideas on how to get Zend to "see" this controller?