diff --git a/internal/store/postgres/personal_customer_device_store.go b/internal/store/postgres/personal_customer_device_store.go
index 2e5b592..a58d46f 100644
--- a/internal/store/postgres/personal_customer_device_store.go
+++ b/internal/store/postgres/personal_customer_device_store.go
@@ -44,7 +44,7 @@ func (s *PersonalCustomerDeviceStore) GetByCustomerID(ctx context.Context, custo
 func (s *PersonalCustomerDeviceStore) GetByDeviceNo(ctx context.Context, deviceNo string) ([]*model.PersonalCustomerDevice, error) {
 	var records []*model.PersonalCustomerDevice
 	if err := s.db.WithContext(ctx).
-		Where("device_no = ?", deviceNo).
+		Where("virtual_no = ?", deviceNo).
 		Order("last_used_at DESC").
 		Find(&records).Error; err != nil {
 		return nil, err
@@ -56,7 +56,7 @@ func (s *PersonalCustomerDeviceStore) GetByDeviceNo(ctx context.Context, deviceN
 func (s *PersonalCustomerDeviceStore) GetByCustomerAndDevice(ctx context.Context, customerID uint, deviceNo string) (*model.PersonalCustomerDevice, error) {
 	var record model.PersonalCustomerDevice
 	if err := s.db.WithContext(ctx).
-		Where("customer_id = ? AND device_no = ?", customerID, deviceNo).
+		Where("customer_id = ? AND virtual_no = ?", customerID, deviceNo).
 		First(&record).Error; err != nil {
 		return nil, err
 	}
@@ -89,7 +89,7 @@ func (s *PersonalCustomerDeviceStore) ExistsByCustomerAndDevice(ctx context.Cont
 	var count int64
 	if err := s.db.WithContext(ctx).
 		Model(&model.PersonalCustomerDevice{}).
-		Where("customer_id = ? AND device_no = ? AND status = ?", customerID, deviceNo, 1).
+		Where("customer_id = ? AND virtual_no = ? AND status = ?", customerID, deviceNo, 1).
 		Count(&count).Error; err != nil {
 		return false, err
 	}