diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index 8a59e4c6136..df14f2a3f3f 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -1713,6 +1713,9 @@ class SaleOrderLine(models.Model):
             'tax_id', 'analytic_tag_ids'
         ]
 
+    def _onchange_product_id_set_customer_lead(self):
+        pass
+
     @api.onchange('product_id', 'price_unit', 'product_uom', 'product_uom_qty', 'tax_id')
     def _onchange_discount(self):
         if not (self.product_id and self.product_uom and
diff --git a/addons/sale_product_matrix/models/sale_order.py b/addons/sale_product_matrix/models/sale_order.py
index f50e35b0498..a504416274c 100644
--- a/addons/sale_product_matrix/models/sale_order.py
+++ b/addons/sale_product_matrix/models/sale_order.py
@@ -113,6 +113,7 @@ class SaleOrder(models.Model):
                 for line in self.order_line.filtered(lambda line: line.product_template_id == product_template):
                     line.product_id_change()
                     line._onchange_discount()
+                    line._onchange_product_id_set_customer_lead()
                     
 
     def _get_matrix(self, product_template):