diff --git a/Example3/Chat.cs b/Example3/Chat.cs
index 31f718f8..bfc43183 100644
--- a/Example3/Chat.cs
+++ b/Example3/Chat.cs
@@ -40,6 +40,9 @@ namespace Example3
 
     protected override void OnClose (CloseEventArgs e)
     {
+      if (_name == null)
+        return;
+
       var fmt = "{0} got logged off...";
       var msg = String.Format (fmt, _name);