diff --git a/LICENSE b/LICENSE
index 658c7fc..13ae451 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 ZeroMQ extension for PHP                                                         
-Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           
+Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      
 All rights reserved.                                                             
                                                                                  
 Redistribution and use in source and binary forms, with or without               
diff --git a/php_zmq.h b/php_zmq.h
index 9372448..f05ff60 100644
--- a/php_zmq.h
+++ b/php_zmq.h
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/php_zmq_pollset.h b/php_zmq_pollset.h
index 40fe52a..425399c 100644
--- a/php_zmq_pollset.h
+++ b/php_zmq_pollset.h
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/php_zmq_private.h b/php_zmq_private.h
index 05d92f8..25a9a2f 100644
--- a/php_zmq_private.h
+++ b/php_zmq_private.h
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/zmq.c b/zmq.c
index 69d5766..5c40156 100644
--- a/zmq.c
+++ b/zmq.c
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/zmq_device.c b/zmq_device.c
index 6c735fa..d1a952d 100644
--- a/zmq_device.c
+++ b/zmq_device.c
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/zmq_fd_stream.c b/zmq_fd_stream.c
index 1c067e0..f77b4c5 100644
--- a/zmq_fd_stream.c
+++ b/zmq_fd_stream.c
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/zmq_pollset.c b/zmq_pollset.c
index d20c2cc..2587ff2 100644
--- a/zmq_pollset.c
+++ b/zmq_pollset.c
@@ -1,7 +1,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |
diff --git a/zmq_sockopt.c b/zmq_sockopt.c
index 53adc48..b3f5c8d 100644
--- a/zmq_sockopt.c
+++ b/zmq_sockopt.c
@@ -2,7 +2,7 @@
 /*
 +-----------------------------------------------------------------------------------+
 |  ZMQ extension for PHP                                                            |
-|  Copyright (c) 2010, Mikko Koppanen <mkoppanen@php.net>                           |
+|  Copyright (c) 2010-2013, Mikko Koppanen <mkoppanen@php.net>                      |
 |  All rights reserved.                                                             |
 +-----------------------------------------------------------------------------------+
 |  Redistribution and use in source and binary forms, with or without               |