diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 082089b429f..107111a8986 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -1248,11 +1248,15 @@ 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;
-    			    else $ref_prodserv = $prodser->ref.($ref_supplier ? ' ('.$outputlangs->transnoentitiesnoconv("SupplierRef").' '.$ref_supplier.')' : '');   // Show local ref and supplier ref
+					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 = $prodser->ref.' ('.$outputlangs->transnoentitiesnoconv("SupplierRef").' '.$ref_supplier.')';
 				}
-				else $ref_prodserv = $prodser->ref; // Show local ref only
+				else 
+					$ref_prodserv = $prodser->ref; // Show local ref only
 
 				if (! empty($libelleproduitservice)) $ref_prodserv .= " - ";
 			}