diff --git a/Programs/examples/TestClient/Program.cs b/Programs/examples/TestClient/Program.cs
index bcae4842..6e6d5edb 100644
--- a/Programs/examples/TestClient/Program.cs
+++ b/Programs/examples/TestClient/Program.cs
@@ -8,6 +8,17 @@ namespace OpenMetaverse.TestClient
     [Serializable]
     public class CommandLineArgumentsException : Exception
     {
+        public CommandLineArgumentsException() : base()
+        {
+        }
+
+        public CommandLineArgumentsException(string message) : base(message)
+        {
+        }
+
+        public CommandLineArgumentsException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
     }
 
     public class Program