diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 13c99dea052..4a11fb1b0d5 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -3679,7 +3679,11 @@ class Form
 		$sql .= " AND p.tobuy = 1";
 		$sql .= " AND s.fournisseur = 1";
 		$sql .= " AND p.rowid = ".((int) $productid);
-		$sql .= " ORDER BY s.nom, pfp.ref_fourn DESC";
+		if (empty($conf->global->PRODUCT_BEST_SUPPLIER_PRICE_PRESELECTED)) {
+			$sql .= " ORDER BY s.nom, pfp.ref_fourn DESC";
+		} else {
+			$sql .= " ORDER BY pfp.unitprice ASC";
+		}
 
 		dol_syslog(get_class($this)."::select_product_fourn_price", LOG_DEBUG);
 		$result = $this->db->query($sql);
@@ -3701,7 +3705,7 @@ class Form
 
 					$opt = '<option value="'.$objp->idprodfournprice.'"';
 					//if there is only one supplier, preselect it
-					if ($num == 1 || ($selected_supplier > 0 && $objp->fk_soc == $selected_supplier)) {
+					if ($num == 1 || ($selected_supplier > 0 && $objp->fk_soc == $selected_supplier) || ($i == 0 && !empty($conf->global->PRODUCT_BEST_SUPPLIER_PRICE_PRESELECTED))) {
 						$opt .= ' selected';
 					}
 					$opt .= '>'.$objp->name.' - '.$objp->ref_fourn.' - ';