diff --git a/tools/ndnsec/op-tool.hpp b/tools/ndnsec/op-tool.hpp
index d04d886..65bb665 100644
--- a/tools/ndnsec/op-tool.hpp
+++ b/tools/ndnsec/op-tool.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2014 Regents of the University of California.
+ * Copyright (c) 2013-2015 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *