diff --git a/fail-monitor/argument.cpp b/fail-monitor/argument.cpp
index daf0177..33194ce 100644
--- a/fail-monitor/argument.cpp
+++ b/fail-monitor/argument.cpp
@@ -13,10 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#include "argument.hpp"
+
+#include <algorithm>
 #include <iostream>
 #include <iterator>
-#include <algorithm>
-#include "argument.hpp"
 
 namespace phosphor
 {
@@ -85,6 +86,6 @@
 
 const std::string ArgumentParser::trueString = "true";
 const std::string ArgumentParser::emptyString = "";
-}
-}
-}
+} // namespace failure
+} // namespace unit
+} // namespace phosphor