--- a/src/applications/packet-sink/packet-sink.cc	Mon Mar 24 16:29:43 2008 -0700
+++ b/src/applications/packet-sink/packet-sink.cc	Mon Mar 24 16:30:05 2008 -0700
@@ -41,6 +41,7 @@
 {
   static TypeId tid = TypeId ("ns3::PacketSink")
     .SetParent<Application> ()
+    .AddConstructor<PacketSink> ()
     .AddAttribute ("Local", "The Address on which to Bind the rx socket.",
                    Address (),
                    MakeAddressAccessor (&PacketSink::m_local),