diff --git a/membership_initial_discount/models/account_move_line.py b/membership_initial_discount/models/account_move_line.py
index be8e0db..e9a0c17 100644
--- a/membership_initial_discount/models/account_move_line.py
+++ b/membership_initial_discount/models/account_move_line.py
@@ -17,7 +17,7 @@ class AccountMoveLine(models.Model):
 
     @api.onchange("product_id")
     def _inverse_product_id(self):
-        super()._onchange_product_id()
+        super()._inverse_product_id()
         for line in self:
             if not line.product_id or line.display_type in (
                 "line_section",