diff -r 70355f67e39c src/simulator/realtime-simulator-impl.cc
--- a/src/simulator/realtime-simulator-impl.cc	Mon Jan 04 11:59:12 2010 +0100
+++ b/src/simulator/realtime-simulator-impl.cc	Thu Jul 22 13:38:42 2010 +0200
@@ -528,7 +528,7 @@
     NS_LOG_LOGIC ("handle " << next.key.m_ts);
     m_currentTs = next.key.m_ts;
     m_currentContext = next.key.m_context;
-    m_currentUid = next.key.m_ts;
+    m_currentUid = next.key.m_uid;
     event = next.impl;
   }
   event->Invoke ();