diff --git a/htdocs/product/dynamic_price/class/price_parser.class.php b/htdocs/product/dynamic_price/class/price_parser.class.php
index 3d28f4b6011..8a1bb68a157 100644
--- a/htdocs/product/dynamic_price/class/price_parser.class.php
+++ b/htdocs/product/dynamic_price/class/price_parser.class.php
@@ -263,13 +263,16 @@ class PriceParser
 			return -1;
 		} elseif ($res == 0) {
 			$supplier_min_price = 0;
+        	$supplier_min_price_with_discount = 0;
 		} else {
 			 $supplier_min_price = $productFournisseur->fourn_unitprice;
+			 $supplier_min_price_with_discount = $productFournisseur->fourn_unitprice_with_discount;
 		}
 
 		//Accessible values by expressions
 		$extra_values = array_merge($extra_values, array(
 			"supplier_min_price" => $supplier_min_price,
+			"supplier_min_price_with_discount" => $supplier_min_price_with_discount,
 		));
 
 		//Parse the expression and return the price, if not error occurred check if price is higher than min
@@ -329,12 +332,13 @@ class PriceParser
 		//Values for product expressions
 		$extra_values = array_merge($extra_values, array(
 			"supplier_min_price" => 1,
+			"supplier_min_price_with_discount" => 2,
 		));
 
 		//Values for supplier product expressions
 		$extra_values = array_merge($extra_values, array(
-			"supplier_quantity" => 2,
-			"supplier_tva_tx" => 3,
+			"supplier_quantity" => 3,
+			"supplier_tva_tx" => 4,
 		));
 		return $this->parseExpression($product, $expression, $extra_values);
 	}