diff --git a/Demos/Guess/GuessOS.cs b/Demos/Guess/GuessOS.cs
index db1e63c07..e34f540e4 100644
--- a/Demos/Guess/GuessOS.cs
+++ b/Demos/Guess/GuessOS.cs
@@ -29,18 +29,6 @@ namespace GuessKernel
 
     private Debugger mDebugger = new Debugger("User", "Guess");
 
-    private class KVPClass
-    {
-      public int Key;
-      public int Value;
-    }
-
-    private struct KVPStruct
-    {
-      public int Key;
-      public int Value;
-    }
-
     protected override void Run()
     {
       mCount++;