--- a/src/internet/model/tcp-tahoe.h	Wed Nov 30 19:16:09 2011 -0500
+++ b/src/internet/model/tcp-tahoe.h	Thu Dec 01 04:53:20 2011 -0500
@@ -74,6 +74,7 @@
   TracedValue<uint32_t>  m_cWnd;         //< Congestion window
   uint32_t               m_ssThresh;     //< Slow Start Threshold
   uint32_t               m_initialCWnd;  //< Initial cWnd value
+  uint32_t               m_retxThresh;   //< Fast Retransmit threshold
 };
 
 } // namespace ns3