1 files changed, 3 insertions, 1 deletions
diff --git a/cost.go b/cost.go
index ac7ad7d..de2080e 100644
--- a/cost.go
+++ b/cost.go
@@ -60,7 +60,9 @@ type printJobCostReq struct {
 	ShipOpt   ShippingLevel           `json:"shipping_option"`
 }
 
-// TODO: just use ShippingAddress?
+// printJobCostReqShipAddr is a subset of a shipping address. It is
+// necessary because the API returns an error if the address in a
+// /print-job-cost-calculations/ request has any extra fields.
 type printJobCostReqShipAddr struct {
 	City     string      `json:"city"`
 	Country  string      `json:"country_code"`