diff --git a/htdocs/includes/fpdf/fpdf/fpdf.php b/htdocs/includes/fpdf/fpdf/fpdf.php
index 8b1007d0cd6..16790a54d44 100644
--- a/htdocs/includes/fpdf/fpdf/fpdf.php
+++ b/htdocs/includes/fpdf/fpdf/fpdf.php
@@ -1889,6 +1889,7 @@ function _out($s)
 			}
 			
 			foreach($a as $key=>$element) {
+				$element = ereg_replace('–','-',$element); //remplace les – par un tiret
 				if (!preg_match($pattern, $element)) {
 					//Text
 					if($this->HREF) {