diff --git a/tests/unit-tests/ca-memory.t.cpp b/tests/unit-tests/ca-memory.t.cpp
index 290e4ca..fd6f9a5 100644
--- a/tests/unit-tests/ca-memory.t.cpp
+++ b/tests/unit-tests/ca-memory.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2017-2020, Regents of the University of California.
+/*
+ * Copyright (c) 2017-2021, Regents of the University of California.
  *
  * This file is part of ndncert, a certificate management system based on NDN.
  *
@@ -22,7 +22,6 @@
 #include "detail/ca-sqlite.hpp"
 #include "test-common.hpp"
 
-namespace ndn {
 namespace ndncert {
 namespace tests {
 
@@ -93,8 +92,7 @@
   BOOST_CHECK_EQUAL(allRequests.size(), 1);
 }
 
-BOOST_AUTO_TEST_SUITE_END()  // TestCaModule
+BOOST_AUTO_TEST_SUITE_END() // TestCaMemory
 
 } // namespace tests
 } // namespace ndncert
-} // namespace ndn