diff --git a/daemon/mgmt/general-config-section.hpp b/daemon/mgmt/general-config-section.hpp
index cd9089d..6c822d9 100644
--- a/daemon/mgmt/general-config-section.hpp
+++ b/daemon/mgmt/general-config-section.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2019,  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,
@@ -28,13 +28,11 @@
 
 #include "common/config-file.hpp"
 
-namespace nfd {
-namespace general {
+namespace nfd::general {
 
 void
 setConfigFile(ConfigFile& config);
 
-} // namespace general
-} // namespace nfd
+} // namespace nfd::general
 
 #endif // NFD_DAEMON_MGMT_GENERAL_CONFIG_SECTION_HPP