--- a/src/uan/model/uan-mac-cw.cc	Wed May 15 16:26:46 2013 -0400
+++ b/src/uan/model/uan-mac-cw.cc	Wed May 15 16:37:31 2013 -0400
@@ -123,7 +123,7 @@
     {
     case CCABUSY:
       NS_LOG_DEBUG ("Time " << Simulator::Now ().GetSeconds () << " MAC " << GetAddress () << " Starting enqueue CCABUSY");
-      if (m_txEndEvent.IsRunning () == TX)
+      if (m_txEndEvent.IsRunning ())
         {
           NS_LOG_DEBUG ("State is TX");
         }