diff --git a/tools/chunks/catchunks/discover-version-fixed.hpp b/tools/chunks/catchunks/discover-version-fixed.hpp
index 9925707..2514098 100644
--- a/tools/chunks/catchunks/discover-version-fixed.hpp
+++ b/tools/chunks/catchunks/discover-version-fixed.hpp
@@ -1,8 +1,8 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2016,  Regents of the University of California,
- *                      Colorado State University,
- *                      University Pierre & Marie Curie, Sorbonne University.
+/*
+ * Copyright (c) 2016-2017, Regents of the University of California,
+ *                          Colorado State University,
+ *                          University Pierre & Marie Curie, Sorbonne University.
  *
  * This file is part of ndn-tools (Named Data Networking Essential Tools).
  * See AUTHORS.md for complete list of ndn-tools authors and contributors.
@@ -46,10 +46,9 @@
  */
 class DiscoverVersionFixed : public DiscoverVersion
 {
-
 public:
   /**
-   * @brief create a DiscoverVersionSpecified service
+   * @brief create a DiscoverVersionFixed service
    */
   DiscoverVersionFixed(const Name& prefix, Face& face, const Options& options);