diff --git a/common/rfb/CMsgReaderV3.h b/common/rfb/CMsgReaderV3.h
index a3b604e..8aecdea 100644
--- a/common/rfb/CMsgReaderV3.h
+++ b/common/rfb/CMsgReaderV3.h
@@ -1,4 +1,5 @@
 /* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2009 Pierre Ossman for Cendio AB
  * 
  * This is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -30,6 +31,7 @@
   private:
     virtual void readFramebufferUpdate();
     virtual void readSetDesktopName(int x, int y, int w, int h);
+    virtual void readExtendedDesktopSize(int x, int y, int w, int h);
     int nUpdateRectsLeft;
   };
 }