diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 8648787bedf..16f72b2d837 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -2482,6 +2482,10 @@ class Form
 				$opt = '<option value="'.$outkey.'"';
 				if ($selected && $selected == $objp->idprodfournprice) $opt.= ' selected';
 				if (empty($objp->idprodfournprice) && empty($alsoproductwithnosupplierprice)) $opt.=' disabled';
+				if (!empty($objp->idprodfournprice) && $objp->idprodfournprice > 0)
+				{
+					$opt.= ' pbq="'.$objp->idprodfournprice.'" data-pbq="'.$objp->idprodfournprice.'" data-pbqqty="'.$objp->quantity.'" data-pbqpercent="'.$objp->remise_percent.'"';
+				}
 				$opt.= '>';
 
 				$objRef = $objp->ref;
diff --git a/htdocs/core/tpl/objectline_create.tpl.php b/htdocs/core/tpl/objectline_create.tpl.php
index 37989e92f08..501e3db3d6c 100644
--- a/htdocs/core/tpl/objectline_create.tpl.php
+++ b/htdocs/core/tpl/objectline_create.tpl.php
@@ -729,10 +729,11 @@ jQuery(document).ready(function() {
         ?>
 
         /* To process customer price per quantity */
-        var pbq = $('option:selected', this).attr('data-pbq');
-        var pbqqty = $('option:selected', this).attr('data-pbqqty');
-        var pbqpercent = $('option:selected', this).attr('data-pbqpercent');
-        if (jQuery('#idprod').val() > 0 && typeof pbq !== "undefined")
+        var pbq = parseInt($('option:selected', this).attr('data-pbq'));
+        var pbqqty = parseFloat($('option:selected', this).attr('data-pbqqty'));
+        var pbqpercent = parseFloat($('option:selected', this).attr('data-pbqpercent'));
+
+        if ((jQuery('#idprod').val() > 0 || jQuery('#idprodfournprice').val()) && typeof pbq !== "undefined")
         {
             console.log("We choose a price by quanty price_by_qty id = "+pbq+" price_by_qty qty = "+pbqqty+" price_by_qty percent = "+pbqpercent);
             jQuery("#pbq").val(pbq);
@@ -786,7 +787,6 @@ function setforfree() {
 	jQuery("#tva_tx").show();
 	jQuery("#buying_price").val('').show();
 	jQuery("#fournprice_predef").hide();
-	jQuery("#title_fourn_ref").show();
 	jQuery("#title_vat").show();
 	jQuery("#title_up_ht").show();
 	jQuery("#title_up_ht_currency").show();
@@ -810,7 +810,6 @@ function setforpredef() {
 	jQuery("#fourn_ref").hide();
 	jQuery("#tva_tx").hide();
 	jQuery("#buying_price").show();
-	jQuery("#title_fourn_ref").hide();
 	jQuery("#title_vat").hide();
 	jQuery("#title_up_ht").hide();
 	jQuery("#title_up_ht_currency").hide();