diff --git a/tests/unit-tests/util/simple-notification.hpp b/tests/unit-tests/util/simple-notification.hpp
index ce6ec90..23f26f8 100644
--- a/tests/unit-tests/util/simple-notification.hpp
+++ b/tests/unit-tests/util/simple-notification.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -31,7 +31,6 @@
 #include "common.hpp"
 
 #include "encoding/encoding-buffer.hpp"
-#include "security/key-chain.hpp"
 
 namespace ndn {
 namespace util {