diff --git a/tests/unit-tests/util/logging.t.cpp b/tests/unit-tests/util/logging.t.cpp
index cced73b..693f844 100644
--- a/tests/unit-tests/util/logging.t.cpp
+++ b/tests/unit-tests/util/logging.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2013-2017 Regents of the University of California.
+ * Copyright (c) 2013-2018 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -24,7 +24,6 @@
 #include "../unit-test-time-fixture.hpp"
 
 #include "boost-test.hpp"
-#include <boost/test/output_test_stream.hpp>
 
 namespace ndn {
 namespace util {