diff --git a/AttendanceDAO.cs b/AttendanceDAO.cs
index 7d61f9f..6e0f0d8 100644
--- a/AttendanceDAO.cs
+++ b/AttendanceDAO.cs
@@ -19,7 +19,7 @@ namespace HanvonF710XAttendanceService
             cmd.Parameters.AddWithValue("@AcNo", attendance.AcNo);
             cmd.Parameters.AddWithValue("@CHECKTIME", attendance.CheckTime);
             cmd.Parameters.AddWithValue("@isProcessed", attendance.IsProcessed);
-            cmd.Parameters.AddWithValue("@machineId", attendance.MachineId);
+            cmd.Parameters.AddWithValue("@MachineId", attendance.MachineId);
             cmd.Parameters.AddWithValue("@InOutTypeId", attendance.InOutTypeId);
             cmd.Parameters.AddWithValue("@MachineIP", attendance.MachineIp);
             cmd.Parameters.AddWithValue("@Getdate", attendance.Date);