--- a/src/internet-node/internet-node.cc	Wed Jan 02 09:09:24 2008 +0100
+++ b/src/internet-node/internet-node.cc	Wed Jan 02 09:25:31 2008 +0100
@@ -78,7 +78,7 @@
 InternetNode::GetTraceResolver () const
 {
   Ptr<CompositeTraceResolver> resolver = Create<CompositeTraceResolver> ();
-  Ptr<Ipv4L3Protocol> ipv4 = QueryInterface<Ipv4L3Protocol> (Ipv4L3Protocol::iid);
+  Ptr<Ipv4L3Protocol> ipv4 = QueryInterface<Ipv4L3Protocol> ();
   resolver->AddComposite ("ipv4", ipv4);
   resolver->SetParentResolver (Node::GetTraceResolver ());
   return resolver;