diff --git a/service/staff_salary.go b/service/staff_salary.go
index e463083..b076841 100644
--- a/service/staff_salary.go
+++ b/service/staff_salary.go
@@ -92,6 +92,7 @@ func (s *StaffSalary) calculate(corp *model.Corp, salary *model.StaffSalary) {
 		data["biz"] = dataFactory.Calculate(salary)
 	}
 	salary.Extra = goutil.EncodeJSONIndent(data)
+	salary.SetExtra("calculate", goutil.GetNowTime())
 
 	//获取计算器表达式
 	calculator, _ := dao.NewSalaryCalculatorDao().Get(cast.ToInt64(s.user.GetSalary().Calculator))