diff --git a/addons/stock/wizard/stock_quantity_history.py b/addons/stock/wizard/stock_quantity_history.py
index 16dee8b4de1..e138bce9bb3 100644
--- a/addons/stock/wizard/stock_quantity_history.py
+++ b/addons/stock/wizard/stock_quantity_history.py
@@ -12,7 +12,7 @@ class StockQuantityHistory(models.TransientModel):
         (0, 'Current Inventory'),
         (1, 'At a Specific Date')
     ], string="Compute", help="Choose to analyze the current inventory or from a specific date in the past.")
-    date = fields.Datetime('Inventory at Date', help="Choose a date to get the inventory at that date", default=fields.Datetime.now())
+    date = fields.Datetime('Inventory at Date', help="Choose a date to get the inventory at that date", default=fields.Datetime.now)
 
     def open_table(self):
         self.ensure_one()