diff --git a/osi_fifo_serialized_fix/models/stock_move.py b/osi_fifo_serialized_fix/models/stock_move.py
index ee33c5f7a..0f8e7895c 100644
--- a/osi_fifo_serialized_fix/models/stock_move.py
+++ b/osi_fifo_serialized_fix/models/stock_move.py
@@ -15,8 +15,3 @@ def _create_out_svl(self, forced_quantity=None):
             )._create_out_svl(forced_quantity)
             res += result
         return res
-
-class StockMoveLine(models.Model):
-    _inherit = "stock.move.line"
-
-    unit_cost = fields.Float()