diff --git a/yuthon_hr_attendance/models/card_approval.py b/yuthon_hr_attendance/models/card_approval.py
index ed5023e46..001855e2c 100644
--- a/yuthon_hr_attendance/models/card_approval.py
+++ b/yuthon_hr_attendance/models/card_approval.py
@@ -47,6 +47,9 @@ class CardApprovals(models.Model):
         ], limit=1)
         if vacation_report:
             self.number_cards_replaced = vacation_report.number_card
+        else:
+            self.number_cards_replaced = 0
+
 
     @api.constrains("users_id")
     def _check_user(self):