diff --git a/src/util/util.hpp b/src/util/util.hpp
index 7acf496..24aa179 100644
--- a/src/util/util.hpp
+++ b/src/util/util.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014, Regents of the University of California.
+ * Copyright (c) 2014-2016, Regents of the University of California.
  *
  * This file is part of NDNS (Named Data Networking Domain Name Service).
  * See AUTHORS.md for complete list of NDNS authors and contributors.
@@ -26,8 +26,8 @@
 namespace ndn {
 namespace ndns {
 
-NdnsType
-toNdnsType(const std::string& str);
+NdnsContentType
+toNdnsContentType(const std::string& str);
 
 /**
  * @brief print the data in a flexible way