 		orderFormPromise.then (orderForm) =>
 			items = orderForm.items
 			item.quantity = 0 for item in items
-			@updateItems items, expectedOrderFormSections
+			@updateItems(items, expectedOrderFormSections)
 
 	###*
 	 * Sends a request to add a discount coupon to the OrderForm.

			contentType: 'application/json; charset=utf-8'
			dataType: 'json'
			data: JSON.stringify(checkoutRequest)
		.done @_cacheOrderForm
		.done broadcastOrderForm

	###*
	 * Sends a request to calculates shipping for the current OrderForm, given an address object.

			contentType: 'application/json; charset=utf-8'
			dataType: 'json'
			data: JSON.stringify couponCodeRequest
		.done(@_cacheOrderForm)
		.done(broadcastOrderForm)

	###*
	 * Sends a request to remove the discount coupon from the OrderForm.
