diff --git a/l10n_br_purchase_stock/models/stock_rule.py b/l10n_br_purchase_stock/models/stock_rule.py
index b7211820116a..9187a6405907 100644
--- a/l10n_br_purchase_stock/models/stock_rule.py
+++ b/l10n_br_purchase_stock/models/stock_rule.py
@@ -20,6 +20,5 @@ def _run_buy(self, procurements):
                         price_unit = line.price_unit
                         line._onchange_product_id_fiscal()
                         line.price_unit = price_unit
-                        line._onchange_fiscal_operation_id()
-                        line._onchange_fiscal_operation_line_id()
+
         return result