diff --git a/include/mapnik/placement_finder.hpp b/include/mapnik/placement_finder.hpp
index 70078cd0f..8514e5d02 100644
--- a/include/mapnik/placement_finder.hpp
+++ b/include/mapnik/placement_finder.hpp
@@ -3,7 +3,6 @@
  * This file is part of Mapnik (c++ mapping toolkit)
  *
  * Copyright (C) 2011 Artem Pavlenko
- * Copyright (C) 2011 Artem Pavlenko
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/mapnik/shield_symbolizer.hpp b/include/mapnik/shield_symbolizer.hpp
index a713c31e9..6151b8f5a 100644
--- a/include/mapnik/shield_symbolizer.hpp
+++ b/include/mapnik/shield_symbolizer.hpp
@@ -3,7 +3,6 @@
  * This file is part of Mapnik (c++ mapping toolkit)
  *
  * Copyright (C) 2011 Artem Pavlenko
- * Copyright (C) 2011 Artem Pavlenko
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/mapnik/text_path.hpp b/include/mapnik/text_path.hpp
index 50c719557..282778a36 100644
--- a/include/mapnik/text_path.hpp
+++ b/include/mapnik/text_path.hpp
@@ -3,7 +3,6 @@
  * This file is part of Mapnik (c++ mapping toolkit)
  *
  * Copyright (C) 2011 Artem Pavlenko
- * Copyright (C) 2011 Artem Pavlenko
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/src/placement_finder.cpp b/src/placement_finder.cpp
index 5d5dacd21..b0dafd56b 100644
--- a/src/placement_finder.cpp
+++ b/src/placement_finder.cpp
@@ -3,7 +3,6 @@
  * This file is part of Mapnik (c++ mapping toolkit)
  *
  * Copyright (C) 2011 Artem Pavlenko
- * Copyright (C) 2011 Artem Pavlenko
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/src/shield_symbolizer.cpp b/src/shield_symbolizer.cpp
index bb8c68499..6ef85788e 100644
--- a/src/shield_symbolizer.cpp
+++ b/src/shield_symbolizer.cpp
@@ -3,7 +3,6 @@
  * This file is part of Mapnik (c++ mapping toolkit)
  *
  * Copyright (C) 2011 Artem Pavlenko
- * Copyright (C) 2011 Artem Pavlenko
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public