diff --git a/yuthon_salary/models/inherit_hr_payslip.py b/yuthon_salary/models/inherit_hr_payslip.py
index 4d1f6eba8..442355e37 100644
--- a/yuthon_salary/models/inherit_hr_payslip.py
+++ b/yuthon_salary/models/inherit_hr_payslip.py
@@ -131,7 +131,7 @@ class InheritHrPayslip(models.Model):
         # 过滤出状态为草稿或已验证的工资单
         payslips = payslips.filtered(
             lambda slip: slip.state in ['draft', 'verify']
-                         and slip.employee_id.contract_id.is_probation
+                         and not slip.employee_id.contract_id.is_probation
         )
         # delete old payslip lines
         payslips.line_ids.unlink()