diff --git a/src/contact-manager.cpp b/src/contact-manager.cpp
index b98c40a..811130e 100644
--- a/src/contact-manager.cpp
+++ b/src/contact-manager.cpp
@@ -1,7 +1,7 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
 /*
- * Copyright (c) 2013, Regents of the University of California
- *                     Yingdi Yu
+ * Copyright (c) 2013-2016, Regents of the University of California
+ *                          Yingdi Yu
  *
  * BSD license, See the LICENSE file for more information
  *
@@ -18,8 +18,8 @@
 #include <QFile>
 
 #ifndef Q_MOC_RUN
+#include <ndn-cxx/encoding/buffer-stream.hpp>
 #include <ndn-cxx/util/crypto.hpp>
-#include <ndn-cxx/util/io.hpp>
 #include <ndn-cxx/security/sec-rule-relative.hpp>
 #include <ndn-cxx/security/validator-regex.hpp>
 #include "cryptopp.hpp"