diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 23c2f5e9bf4..ac08f4c25a4 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -1234,11 +1234,12 @@ function pdf_getlinedesc($object,$i,$outputlangs,$hideref=0,$hidedesc=0,$issuppl
 			{
 				if ($issupplierline) 
 				{
-					//$ref_prodserv = $prodser->ref.($ref_supplier ? ' ('.$outputlangs->transnoentitiesnoconv("SupplierRef").' '.$ref_supplier.')' : '');   // Show local ref and supplier ref
-					if (! empty($conf->global->PDF_HIDE_PRODUCT_REF_IN_SUPPLIER_LINES)) 
-						$ref_prodserv =$ref_supplier;
+					if ($conf->global->PDF_HIDE_PRODUCT_REF_IN_SUPPLIER_LINES == 1)
+						$ref_prodserv = $ref_supplier;
+					elseif ($conf->global->PDF_HIDE_PRODUCT_REF_IN_SUPPLIER_LINES == 2)
+						$ref_prodserv = $ref_supplier. ' ('.$outputlangs->transnoentitiesnoconv("InternalRef").' '.$prodser->ref.')';  
 					else 
-						$ref_prodserv = $prodser->ref.($ref_supplier ? ' ('.$outputlangs->transnoentitiesnoconv("SupplierRef").' '.$ref_supplier.')' : '');   // Show local ref and supplier ref
+						$ref_prodserv = $prodser->ref.' ('.$outputlangs->transnoentitiesnoconv("SupplierRef").' '.$ref_supplier.')';
 				}
 				else 
 					$ref_prodserv = $prodser->ref; // Show local ref only