diff --git a/tools/ndnsec/set-default.hpp b/tools/ndnsec/set-default.hpp
index ed23b6f..d1ff7fa 100644
--- a/tools/ndnsec/set-default.hpp
+++ b/tools/ndnsec/set-default.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2017 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -73,7 +73,7 @@
       return 1;
     }
 
-  KeyChain keyChain;
+  ndn::security::v1::KeyChain keyChain;
 
   if (vm.count("default_key") != 0)
     {