diff --git a/src/main/java/com/amazonaws/transform/JsonErrorUnmarshaller.java b/src/main/java/com/amazonaws/transform/JsonErrorUnmarshaller.java
index 404aae85d21c..395053ba62c7 100644
--- a/src/main/java/com/amazonaws/transform/JsonErrorUnmarshaller.java
+++ b/src/main/java/com/amazonaws/transform/JsonErrorUnmarshaller.java
@@ -43,6 +43,9 @@ public String parseMessage(JSONObject json) throws Exception {
         if (json.has("message")) {
             message = json.getString("message");
         }
+        else if (json.has("Message")) {
+            message = json.getString("Message");
+        }
         return message;
     }