diff --git a/tests/daemon/fw/dummy-strategy.cpp b/tests/daemon/fw/dummy-strategy.cpp
index 439efd1..a76b5e9 100644
--- a/tests/daemon/fw/dummy-strategy.cpp
+++ b/tests/daemon/fw/dummy-strategy.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2021,  Regents of the University of California,
+ * Copyright (c) 2014-2022,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -25,8 +25,7 @@
 
 #include "dummy-strategy.hpp"
 
-namespace nfd {
-namespace tests {
+namespace nfd::tests {
 
 NFD_REGISTER_STRATEGY(DummyStrategy);
 
@@ -106,5 +105,4 @@
   Strategy::afterNewNextHop(nextHop, pitEntry);
 }
 
-} // namespace tests
-} // namespace nfd
+} // namespace nfd::tests