diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index c8334edc705..dda52e653fe 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -979,6 +979,7 @@ function pdf_pagefoot(&$pdf, $outputlangs, $paramfreetext, $fromcompany, $marge_
 
 	$outputlangs->load("dict");
 	$line = '';
+	$reg = array();
 
 	$dims = $pdf->getPageDimensions();
 
@@ -1273,6 +1274,7 @@ function pdf_writelinedesc(&$pdf, $object, $i, $outputlangs, $w, $h, $posx, $pos
 
 		// Fix bug of some HTML editors that replace links <img src="http://localhostgit/viewimage.php?modulepart=medias&file=image/efd.png" into <img src="http://localhostgit/viewimage.php?modulepart=medias&amp;file=image/efd.png"
 		// We make the reverse, so PDF generation has the real URL.
+		$nbrep = 0;
 		$labelproductservice = preg_replace('/(<img[^>]*src=")([^"]*)(&amp;)([^"]*")/', '\1\2&\4', $labelproductservice, -1, $nbrep);
 
 		//var_dump($labelproductservice);exit;