diff --git a/htdocs/bookcal/availabilities_agenda.php b/htdocs/bookcal/availabilities_agenda.php
index 630bbb4f08f..6cccf182dad 100644
--- a/htdocs/bookcal/availabilities_agenda.php
+++ b/htdocs/bookcal/availabilities_agenda.php
@@ -1,6 +1,5 @@
 <?php
-/* Copyright (C) 2017 Laurent Destailleur  <eldy@users.sourceforge.net>
- * Copyright (C) 2022 Alice Adminson <aadminson@example.com>
+/* Copyright (C) 2017-2024  Laurent Destailleur     <eldy@users.sourceforge.net>
  * Copyright (C) 2024       Frédéric France         <frederic.france@free.fr>
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/htdocs/bookcal/availabilities_contact.php b/htdocs/bookcal/availabilities_contact.php
index 69b4fb451b2..bcd852ee5e6 100644
--- a/htdocs/bookcal/availabilities_contact.php
+++ b/htdocs/bookcal/availabilities_contact.php
@@ -1,6 +1,5 @@
 <?php
-/* Copyright (C) 2007-2017 Laurent Destailleur  <eldy@users.sourceforge.net>
- * Copyright (C) 2022 Alice Adminson <aadminson@example.com>
+/* Copyright (C) 2007-2024  Laurent Destailleur     <eldy@users.sourceforge.net>
  * Copyright (C) 2024       Frédéric France         <frederic.france@free.fr>
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/htdocs/bookcal/availabilities_document.php b/htdocs/bookcal/availabilities_document.php
index cf8897ff4c7..1abdde9a496 100644
--- a/htdocs/bookcal/availabilities_document.php
+++ b/htdocs/bookcal/availabilities_document.php
@@ -1,7 +1,6 @@
 <?php
-/* Copyright (C) 2007-2017 Laurent Destailleur  <eldy@users.sourceforge.net>
- * Copyright (C) 2022 Alice Adminson <aadminson@example.com>
- * Copyright (C) 2024		MDW							<mdeweerd@users.noreply.github.com>
+/* Copyright (C) 2007-2024  Laurent Destailleur     <eldy@users.sourceforge.net>
+ * Copyright (C) 2024		MDW						<mdeweerd@users.noreply.github.com>
  * Copyright (C) 2024       Frédéric France         <frederic.france@free.fr>
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/htdocs/bookcal/availabilities_note.php b/htdocs/bookcal/availabilities_note.php
index 2031ab5838f..b11f001251b 100644
--- a/htdocs/bookcal/availabilities_note.php
+++ b/htdocs/bookcal/availabilities_note.php
@@ -1,6 +1,5 @@
 <?php
-/* Copyright (C) 2007-2017 Laurent Destailleur  <eldy@users.sourceforge.net>
- * Copyright (C) 2022 Alice Adminson <aadminson@example.com>
+/* Copyright (C) 2007-2024  Laurent Destailleur     <eldy@users.sourceforge.net>
  * Copyright (C) 2024       Frédéric France         <frederic.france@free.fr>
  *
  * This program is free software; you can redistribute it and/or modify