diff --git a/htdocs/telephonie/pdf/pdfdetail_nodet.modules.php b/htdocs/telephonie/pdf/pdfdetail_nodet.modules.php
index adf786f5a2f..3afbc6b6365 100644
--- a/htdocs/telephonie/pdf/pdfdetail_nodet.modules.php
+++ b/htdocs/telephonie/pdf/pdfdetail_nodet.modules.php
@@ -451,7 +451,7 @@ class pdfdetail_nodet {
    * Header
    */
 
-  function Header(&$pdf)
+  function Header(&$pdf, $output)
   {
     $pdf->SetXY(10,5);