WebStorm wraps transpiled CoffeeScript classes into self calling function Follow

As in the topic. Is there any option that when I translate .coffee file into .js it will look like the one I would translate onto CoffeeScript official webpage? For example(from cs page):

class animal
  constructor: (@name) ->

  move: (meters) ->
    alert @name + " moved #{meters}m."

in webstorm is translated to:

(function() {
  var animal;

  animal = (function() {
    function animal(name) {
      this.name = name;
    }

    animal.prototype.move = function(meters) {
      return alert(this.name + (" moved " + meters + "m."));
    };

    return animal;

  })();

}).call(this);

and I cant get instance of this class outside animal.coffee file. Is there any option that webstorm would automaticly output .js file like this?:

var animal;

animal = (function() {
  function animal(name) {
    this.name = name;
  }

  animal.prototype.move = function(meters) {
    return alert(this.name + (" moved " + meters + "m."));
  };

  return animal;

})();

Maybe it is some silly question, but I just started using webstorm and I cant find any information about this issue. For any help I would be gratefull.