--- a/src/internet-node/ipv4-l4-demux.cc	Mon Apr 14 16:19:17 2008 -0700
+++ b/src/internet-node/ipv4-l4-demux.cc	Thu Apr 17 13:42:25 2008 -0700
@@ -37,7 +37,7 @@
   static TypeId tid = TypeId ("ns3::Ipv4L4Demux")
     .SetParent<Object> ()
     .AddAttribute ("Protocols", "The set of protocols registered with this demux.",
-                   ObjectVector (),
+                   ObjectVectorValue (),
                    MakeObjectVectorAccessor (&Ipv4L4Demux::m_protocols),
                    MakeObjectVectorChecker<Ipv4L4Protocol> ())
     ;