diff --git a/Payroll.UI/Payroll.UI/Salary/fPayslipSendMail.cs b/Payroll.UI/Payroll.UI/Salary/fPayslipSendMail.cs
index 5fe5b82..0f8a173 100644
--- a/Payroll.UI/Payroll.UI/Salary/fPayslipSendMail.cs
+++ b/Payroll.UI/Payroll.UI/Salary/fPayslipSendMail.cs
@@ -613,8 +613,8 @@ namespace Payroll.UI
 
                         // ✅ FILE NAME: ID-Year-Month.pdf
                         string fileName = string.Format(
-                            "{0}-{1}-{2}.pdf",
-                            emp.Employee.EmployeeNo,
+                            "{0}_{1}_{2}.pdf",
+                            "CEL-" + emp.Employee.EmployeeNo,
                             year,
                             month.ToString("00")
                         );