diff --git a/Shippo/Rate.cs b/Shippo/Rate.cs
index fb082c4..b78e628 100644
--- a/Shippo/Rate.cs
+++ b/Shippo/Rate.cs
@@ -48,6 +48,9 @@ public class Rate : ShippoId {
 
         [JsonProperty(PropertyName = "zone")]
         public object Zone { get; set; }
+        
+        [JsonProperty(PropertyName = "carrier_account")]
+        public string Carrier_Account { get; set; }
     }
 
     public class ServiceLevel