diff --git a/IRaCIS.Core.Application/Triggers/VisitTaskIAfterSignTrigger.cs b/IRaCIS.Core.Application/Triggers/VisitTaskIAfterSignTrigger.cs
index 4cac144c0..ef5173201 100644
--- a/IRaCIS.Core.Application/Triggers/VisitTaskIAfterSignTrigger.cs
+++ b/IRaCIS.Core.Application/Triggers/VisitTaskIAfterSignTrigger.cs
@@ -52,6 +52,7 @@ namespace IRaCIS.Core.Application.Triggers
             if (context.ChangeType == ChangeType.Modified && visitTask.ReadingTaskState==ReadingTaskState.HaveSigned && visitTask.ReadingTaskState != context.UnmodifiedEntity.ReadingTaskState    &&        _userInfo.UserTypeEnumInt == (int)UserTypeEnum.PI)
             {
                 visitTask.PIAuditState = PIAuditState.PIAgree;
+                visitTask.FirstAuditUserId = _userInfo.Id;
             }
 
             if (context.ChangeType == ChangeType.Modified && visitTask.PIAuditState!=context.UnmodifiedEntity.PIAuditState  && visitTask.PIAuditState==PIAuditState.PIAgree)