--- a/utils/bench-packets.cc	Mon Jun 02 10:51:55 2008 -0700
+++ b/utils/bench-packets.cc	Tue Jun 03 16:20:17 2008 -0700
@@ -149,6 +149,9 @@
         buf.ReadU8 ();
       }
   }
+  virtual void Print (std::ostream &os) const {
+    os << "N=" << N;
+  }
   BenchTag ()
     : Tag () {}
 };