--- a/examples/mixed-wireless.cc	Thu May 15 11:37:36 2008 -0700
+++ b/examples/mixed-wireless.cc	Fri May 16 15:52:04 2008 -0700
@@ -272,7 +272,6 @@
         {
           subnetAlloc->Add (Vector (0.0, j, 0.0));
         }
-      mobility.EnableNotifier ();
       mobility.PushReferenceMobilityModel (backbone.Get (i));
       mobility.SetPositionAllocator (subnetAlloc);
       mobility.SetMobilityModel ("ns3::RandomDirection2dMobilityModel",
@@ -347,7 +346,7 @@
   CsmaHelper::EnablePcap ("mixed-wireless", appSink->GetId (), 0);
 
 #ifdef ENABLE_FOR_TRACING_EXAMPLE
-  Config::Connect ("/NodeList/*/$MobilityModelNotifier/CourseChange",
+  Config::Connect ("/NodeList/*/$MobilityModel/CourseChange",
     MakeCallback (&CourseChangeCallback));
 #endif