diff --git a/src/mgmt/dispatcher.cpp b/src/mgmt/dispatcher.cpp
index 3220864..70661c1 100644
--- a/src/mgmt/dispatcher.cpp
+++ b/src/mgmt/dispatcher.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).
  *
@@ -28,7 +28,7 @@
 namespace ndn {
 namespace mgmt {
 
-const time::milliseconds DEFAULT_FRESHNESS_PERIOD = time::milliseconds(1000);
+const time::milliseconds DEFAULT_FRESHNESS_PERIOD = 1_s;
 
 Authorization
 makeAcceptAllAuthorization()