diff --git a/test/test_tools_fail.cc b/test/test_tools_fail.cc
--- a/test/test_tools_fail.cc
+++ b/test/test_tools_fail.cc
@@ -1,6 +1,6 @@
-/* -*- C++ -*-
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
  *
- * This file is a part of LEMON, a generic C++ optimization library
+ * This file is a part of LEMON, a generic C++ optimization library.
  *
  * Copyright (C) 2003-2008
  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
@@ -18,7 +18,7 @@
 
 #include "test_tools.h"
 
-int main() 
+int main()
 {
   check(false, "Don't panic. Failing is the right behaviour here.");
   return 0;