diff --git a/htdocs/core/modules/cheque/pdf/pdf_blochet.class.php b/htdocs/core/modules/cheque/pdf/pdf_blochet.class.php
index bb759d590b9..7b2b099b67c 100644
--- a/htdocs/core/modules/cheque/pdf/pdf_blochet.class.php
+++ b/htdocs/core/modules/cheque/pdf/pdf_blochet.class.php
@@ -201,7 +201,7 @@ class BordereauChequeBlochet extends ModeleChequeReceipts
 		$pdf->MultiCell(22,2,$outputlangs->transnoentities("Ref"),0,'L');
         $pdf->SetXY(32,15);
 		$pdf->SetFont('','', $default_font_size);
-        $pdf->MultiCell(60, 2, $outputlangs->convToOutputCharset($this->number), 0, 'L');
+        $pdf->MultiCell(60, 2, $outputlangs->convToOutputCharset($this->number.($this->ref_ext?" - ".$this->ref_ext:'')), 0, 'L');
 
 		$pdf->SetFont('','', $default_font_size);
         $pdf->SetXY(10,20);