diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index ad910ca6885..20930ca52c4 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -1,6 +1,4 @@
 <?php
-use PhpOffice\PhpSpreadsheet\NamedRange;
-
 /* Copyright (C) 2000-2007	Rodolphe Quiedeville			<rodolphe@quiedeville.org>
  * Copyright (C) 2003		Jean-Louis Bergamo			<jlb@j1b.org>
  * Copyright (C) 2004-2018	Laurent Destailleur			<eldy@users.sourceforge.net>