diff --git a/src/Shentun.ColumnReferencePlugIns/ChargeRequestPlugInsBase.cs b/src/Shentun.ColumnReferencePlugIns/ChargeRequestPlugInsBase.cs
index 7c65c0c..e525b0f 100644
--- a/src/Shentun.ColumnReferencePlugIns/ChargeRequestPlugInsBase.cs
+++ b/src/Shentun.ColumnReferencePlugIns/ChargeRequestPlugInsBase.cs
@@ -171,7 +171,7 @@ where patient.id = patient_register.patient_id and
                 }
                 else if (chargeRequestFlag == ChargeRequestFlag.AlreadyRefund)
                 {
-                    sql = @" update register_check_asbitem set is_charge = 'Y' where  charge_request_id = @ChargeRequestId		
+                    sql = @" update register_check_asbitem set is_charge = 'N' where  charge_request_id = @ChargeRequestId		
                       ";
                     conn.Execute(sql,
                        new { ChargeRequestId = chargeRequestId });