diff --git a/htdocs/core/modules/printing/printgcp.modules.php b/htdocs/core/modules/printing/printgcp.modules.php
index ed50ebaa870..d06a77c7174 100644
--- a/htdocs/core/modules/printing/printgcp.modules.php
+++ b/htdocs/core/modules/printing/printgcp.modules.php
@@ -1,6 +1,6 @@
 <?php
 /*
- * Copyright (C) 2014-2018  Frederic France      <frederic.france@netlogic.fr>
+ * Copyright (C) 2014-2013  Frédéric France      <frederic.france@netlogic.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -234,6 +234,7 @@ class printing_printgcp extends PrintingDriver
      */
     public function getlistAvailablePrinters()
     {
+        $ret = array();
         // Token storage
         $storage = new DoliStorage($this->db, $this->conf);
         // Setup the credentials for the requests