diff --git a/rest/message/instance-post-example-1/instance-post-example-1.6.x.cs b/rest/message/instance-post-example-1/instance-post-example-1.6.x.cs
index 458cb2d2d..fda3a9898 100644
--- a/rest/message/instance-post-example-1/instance-post-example-1.6.x.cs
+++ b/rest/message/instance-post-example-1/instance-post-example-1.6.x.cs
@@ -14,7 +14,7 @@ static void Main(string[] args)
         TwilioClient.Init(accountSid, authToken);
 
         const string sid = "MM5ef8732a3c49700934481addd5ce1659";
-        var message = MessageResource.Update(sid, "");
+        var message = MessageResource.Update(pathSid:sid,body:"");
 
         Console.WriteLine(message.Body); // will be empty
     }