diff --git a/DotNetShipping/ShippingProviders/FedExBaseProvider.cs b/DotNetShipping/ShippingProviders/FedExBaseProvider.cs
index 49ac4be..ac0feb0 100644
--- a/DotNetShipping/ShippingProviders/FedExBaseProvider.cs
+++ b/DotNetShipping/ShippingProviders/FedExBaseProvider.cs
@@ -148,7 +148,11 @@ protected void ProcessReply(RateReply reply)
 
                 var key = rateReplyDetail.ServiceType.ToString();
                 var deliveryDate = rateReplyDetail.DeliveryTimestampSpecified ? rateReplyDetail.DeliveryTimestamp : DateTime.Now.AddDays(30);
-                AddRate(key, _serviceCodes[key], netCharge, deliveryDate);
+
+                if (_serviceCodes.ContainsKey(key))
+                {
+                    AddRate(key, _serviceCodes[key], netCharge, deliveryDate);
+                }                
             }
         }
 
diff --git a/DotNetShipping/ShippingProviders/FedExProvider.cs b/DotNetShipping/ShippingProviders/FedExProvider.cs
index 1e7ac49..03c0a66 100644
--- a/DotNetShipping/ShippingProviders/FedExProvider.cs
+++ b/DotNetShipping/ShippingProviders/FedExProvider.cs
@@ -76,7 +76,8 @@ protected sealed override void SetServiceCodes()
                 {"GROUND_HOME_DELIVERY", "FedEx Ground Residential"},
                 {"FEDEX_INTERNATIONAL_GROUND", "FedEx International Ground"},
                 {"INTERNATIONAL_ECONOMY", "FedEx International Economy"},
-                {"INTERNATIONAL_PRIORITY", "FedEx International Priority"}
+                {"INTERNATIONAL_PRIORITY", "FedEx International Priority"},
+                {"INTERNATIONAL_FIRST", "FedEx International First" }
             };
         }