diff --git a/models/hr_expense.py b/models/hr_expense.py
index efa39d88b5740538b5a10a1cdff0e758302b1591..53be01a07c7db5a965f0ff2680e5ce2d0d0d5640 100644
--- a/models/hr_expense.py
+++ b/models/hr_expense.py
@@ -61,20 +61,23 @@ class CGScopExpense(models.Model):
     # ------------------------------------------------------
     @api.depends('quantity', 'unit_amount')
     def _compute_values(self):
-        self.quantity_computed = self.quantity
-        self.unit_amount_computed = self.unit_amount
+        for expense if self:
+            expense.quantity_computed = expense.quantity
+            expense.unit_amount_computed = expense.unit_amount
 
     @api.depends('employee_id')
     def _compute_from_address(self):
-        if self.employee_id:
-            self.from_address = self._format_address(
-                self.employee_id.address_id)
+        for expense in self:
+            if expense.employee_id:
+                expense.from_address = expense._format_address(
+                    expense.employee_id.address_id)
 
     @api.depends('timesheet_id')
     def _compute_to_address(self):
-        if self.timesheet_id:
-            self.to_address = self._format_address(
-                self.timesheet_id.partner_id)
+        for expense in self:
+            if expense.timesheet_id:
+                expense.to_address = expense._format_address(
+                    expense.timesheet_id.partner_id)
 
     # ------------------------------------------------------
     # Onchange Fields