diff --git a/tests/test-common.hpp b/tests/test-common.hpp
index 7039e83..23e8617 100644
--- a/tests/test-common.hpp
+++ b/tests/test-common.hpp
@@ -37,4 +37,4 @@
 #include "identity-management-fixture.hpp"
 #include "unit-test-time-fixture.hpp"
 
-#endif  // NDNCERT_TESTS_COMMON_HPP
+#endif // NDNCERT_TESTS_COMMON_HPP
diff --git a/tests/unit-tests/bench.t.cpp b/tests/unit-tests/bench.t.cpp
index 709a0bc..d71940a 100644
--- a/tests/unit-tests/bench.t.cpp
+++ b/tests/unit-tests/bench.t.cpp
@@ -170,6 +170,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()  // TestCaConfig
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/ca-memory.t.cpp b/tests/unit-tests/ca-memory.t.cpp
index 77a47e8..80ee5b0 100644
--- a/tests/unit-tests/ca-memory.t.cpp
+++ b/tests/unit-tests/ca-memory.t.cpp
@@ -76,6 +76,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()  // TestCaModule
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/ca-module.t.cpp b/tests/unit-tests/ca-module.t.cpp
index e848aca..f429b2f 100644
--- a/tests/unit-tests/ca-module.t.cpp
+++ b/tests/unit-tests/ca-module.t.cpp
@@ -550,6 +550,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()  // TestCaModule
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/challenge-credential.t.cpp b/tests/unit-tests/challenge-credential.t.cpp
index 46c5928..aeb7b7e 100644
--- a/tests/unit-tests/challenge-credential.t.cpp
+++ b/tests/unit-tests/challenge-credential.t.cpp
@@ -79,6 +79,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/challenge-email.t.cpp b/tests/unit-tests/challenge-email.t.cpp
index 137c5d8..65e5b84 100644
--- a/tests/unit-tests/challenge-email.t.cpp
+++ b/tests/unit-tests/challenge-email.t.cpp
@@ -155,6 +155,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/configuration.t.cpp b/tests/unit-tests/configuration.t.cpp
index c3fdacf..a1fa54f 100644
--- a/tests/unit-tests/configuration.t.cpp
+++ b/tests/unit-tests/configuration.t.cpp
@@ -148,6 +148,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()  // TestCaConfig
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/enc-tlv.t.cpp b/tests/unit-tests/enc-tlv.t.cpp
index 99c5fbe..444c387 100644
--- a/tests/unit-tests/enc-tlv.t.cpp
+++ b/tests/unit-tests/enc-tlv.t.cpp
@@ -42,6 +42,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
diff --git a/tests/unit-tests/name-assignment.t.cpp b/tests/unit-tests/name-assignment.t.cpp
index 8c690f5..a46d696 100644
--- a/tests/unit-tests/name-assignment.t.cpp
+++ b/tests/unit-tests/name-assignment.t.cpp
@@ -70,8 +70,8 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn
 
 
diff --git a/tests/unit-tests/protocol-detail.t.cpp b/tests/unit-tests/protocol-detail.t.cpp
index 38084a2..a10b54b 100644
--- a/tests/unit-tests/protocol-detail.t.cpp
+++ b/tests/unit-tests/protocol-detail.t.cpp
@@ -72,6 +72,6 @@
 
 BOOST_AUTO_TEST_SUITE_END() // TestProtocolDetail
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn