diff --git a/tests/unit/util/notification-subscriber.t.cpp b/tests/unit/util/notification-subscriber.t.cpp
index 820532d..e3b7aa9 100644
--- a/tests/unit/util/notification-subscriber.t.cpp
+++ b/tests/unit/util/notification-subscriber.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018 Regents of the University of California,
+ * Copyright (c) 2014-2019 Regents of the University of California,
  *                         Arizona Board of Regents,
  *                         Colorado State University,
  *                         University Pierre & Marie Curie, Sorbonne University,
@@ -287,6 +287,7 @@
   Name wrongName = streamPrefix;
   wrongName.append("%07%07");
   Data wrongData(wrongName);
+  wrongData.setFreshnessPeriod(1_s);
   m_keyChain.sign(wrongData);
   subscriberFace.receive(wrongData);
   subscriberFace.sentInterests.clear();
diff --git a/tests/unit/util/segment-fetcher.t.cpp b/tests/unit/util/segment-fetcher.t.cpp
index f870030..9f65f49 100644
--- a/tests/unit/util/segment-fetcher.t.cpp
+++ b/tests/unit/util/segment-fetcher.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2013-2018 Regents of the University of California.
+ * Copyright (c) 2013-2019 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -52,6 +52,7 @@
     const uint8_t buffer[] = "Hello, world!";
 
     auto data = make_shared<Data>(Name(baseName).appendSegment(segment));
+    data->setFreshnessPeriod(1_s);
     data->setContent(buffer, sizeof(buffer));
     if (isFinal) {
       data->setFinalBlock(data->getName()[-1]);
@@ -525,6 +526,7 @@
 
   const uint8_t buffer[] = "Hello, world!";
   auto data = makeData("/hello/world/version0/no-segment");
+  data->setFreshnessPeriod(1_s);
   data->setContent(buffer, sizeof(buffer));
 
   face.receive(*data);