diff --git a/utils/ndn-ns3-packet-tag.hpp b/utils/ndn-ns3-packet-tag.hpp
index af9213f..fc59378 100644
--- a/utils/ndn-ns3-packet-tag.hpp
+++ b/utils/ndn-ns3-packet-tag.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2011-2014  Regents of the University of California.
+ * Copyright (c) 2011-2015  Regents of the University of California.
  *
  * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
  * contributors.