Copyright police
diff --git a/lib/zip_add_dir.c b/lib/zip_add_dir.c
index 9c7d279..22a28bd 100644
--- a/lib/zip_add_dir.c
+++ b/lib/zip_add_dir.c
@@ -1,6 +1,6 @@
 /*
   zip_add_dir.c -- add directory
-  Copyright (C) 1999-2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 1999-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_dirent.c b/lib/zip_dirent.c
index 9386947..595b524 100644
--- a/lib/zip_dirent.c
+++ b/lib/zip_dirent.c
@@ -1,6 +1,6 @@
 /*
   zip_dirent.c -- read directory entry (local or central), clean dirent
-  Copyright (C) 1999-2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 1999-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_error.c b/lib/zip_error.c
index 8b4d18e..4b1f279 100644
--- a/lib/zip_error.c
+++ b/lib/zip_error.c
@@ -1,6 +1,6 @@
 /*
   zip_error.c -- struct zip_error helper functions
-  Copyright (C) 1999-2009 Dieter Baron and Thomas Klausner
+  Copyright (C) 1999-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_extra_field.c b/lib/zip_extra_field.c
index 315d886..287e466 100644
--- a/lib/zip_extra_field.c
+++ b/lib/zip_extra_field.c
@@ -1,6 +1,6 @@
 /*
   zip_extra_field.c -- manipulate extra fields
-  Copyright (C) 2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 2012-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_extra_field_api.c b/lib/zip_extra_field_api.c
index 7e336aa..02ed455 100644
--- a/lib/zip_extra_field_api.c
+++ b/lib/zip_extra_field_api.c
@@ -1,6 +1,6 @@
 /*
   zip_extra_field_api.c -- public extra fields API functions
-  Copyright (C) 2012, 2013 Dieter Baron and Thomas Klausner
+  Copyright (C) 2012-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_filerange_crc.c b/lib/zip_filerange_crc.c
index cfce7f0..3b1c868 100644
--- a/lib/zip_filerange_crc.c
+++ b/lib/zip_filerange_crc.c
@@ -1,6 +1,6 @@
 /*
   zip_filerange_crc.c -- compute CRC32 for a range of a file
-  Copyright (C) 2008 Dieter Baron and Thomas Klausner
+  Copyright (C) 2008-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_fopen_index.c b/lib/zip_fopen_index.c
index 1f60114..30466ff 100644
--- a/lib/zip_fopen_index.c
+++ b/lib/zip_fopen_index.c
@@ -1,6 +1,6 @@
 /*
   zip_fopen_index.c -- open file in zip archive for reading by index
-  Copyright (C) 1999-2009 Dieter Baron and Thomas Klausner
+  Copyright (C) 1999-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_fopen_index_encrypted.c b/lib/zip_fopen_index_encrypted.c
index 8af479c..372735e 100644
--- a/lib/zip_fopen_index_encrypted.c
+++ b/lib/zip_fopen_index_encrypted.c
@@ -1,6 +1,6 @@
 /*
   zip_fopen_index_encrypted.c -- open file for reading by index w/ password
-  Copyright (C) 1999-2009 Dieter Baron and Thomas Klausner
+  Copyright (C) 1999-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_set_archive_comment.c b/lib/zip_set_archive_comment.c
index 8c04246..df1caee 100644
--- a/lib/zip_set_archive_comment.c
+++ b/lib/zip_set_archive_comment.c
@@ -1,6 +1,6 @@
 /*
   zip_set_archive_comment.c -- set archive comment
-  Copyright (C) 2006-2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 2006-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_source_open.c b/lib/zip_source_open.c
index 88e7fa7..a501039 100644
--- a/lib/zip_source_open.c
+++ b/lib/zip_source_open.c
@@ -1,6 +1,6 @@
 /*
   zip_source_open.c -- open zip_source (prepare for reading)
-  Copyright (C) 2009 Dieter Baron and Thomas Klausner
+  Copyright (C) 2009-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>
diff --git a/lib/zip_source_window.c b/lib/zip_source_window.c
index 1e514ab..fd20209 100644
--- a/lib/zip_source_window.c
+++ b/lib/zip_source_window.c
@@ -1,6 +1,6 @@
 /*
   zip_source_window.c -- return part of lower source
-  Copyright (C) 2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 2012-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>