diff --git a/web/modules/siretprogram/siretprogram.php b/web/modules/siretprogram/siretprogram.php
index 9c82303c..13f1107f 100644
--- a/web/modules/siretprogram/siretprogram.php
+++ b/web/modules/siretprogram/siretprogram.php
@@ -631,8 +631,31 @@ src="http://www.ixycom.com/images/logo-300.jpg" alt="Logo Ixycom" width="300" he
 
 	public function hookdisplayPDFInvoice($params)
 	{
-		$pdf = $params['pdf'];
+//		TheCoreDev le 11/05/2020 : ce module est obsolète et génère des erreurs PHP dans les logs --> essayons de l'adapter à PS 1.7
 
+		$id_order = (_PS_VERSION_ > '1.5' ? $params['object']->id_order : $params['id_order']);
+		$ma_order = new Order($id_order);
+		$mon_customer_id = $ma_order->id_customer;
+		$my_customer = new Customer($mon_customer_id);
+
+		if (!empty($my_customer->siret))
+		{
+			$text = $this->l('SIRET : ').str_replace(' ', '', $my_customer->siret);
+
+			if (_PS_VERSION_ > '1.5')
+				return $text;
+			else
+			{
+				$pdf = $params['pdf'];
+				$pdf->Ln(20);
+				$pdf->SetFont('Helvetica', '', 8);
+				$pdf->Cell(0, 0, $text, 0, 0, 'R');
+				$pdf->Ln(10);
+			}
+		}
+
+		/*   L'ancien code  -----------------------
+		$pdf = $params['pdf'];
 		$id_order = $params['id_order'];
 		$ma_order = new Order($id_order);
 		$mon_customer_id = $ma_order->id_customer;
@@ -645,6 +668,7 @@ src="http://www.ixycom.com/images/logo-300.jpg" alt="Logo Ixycom" width="300" he
 			$pdf->Cell(0, 0, $this->l('SIRET : ').str_replace(' ', '', $my_customer->siret), 0, 0, 'R');
 			$pdf->Ln(10);
 		}
+		*/
 	}
 
 	public function processSiret($siret, $new_customer)