diff --git a/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs b/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs
index 78764963b..8c3e3a1b7 100644
--- a/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs
+++ b/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs
@@ -548,7 +548,7 @@ public class AuditDocumentService(IRepository<AuditDocument> _auditDocumentRepos
         void findParent(List<Guid> allId, List<Guid> current, List<DeleteAudit> data)
         {
             allId.AddRange(current);
-            var parent =  data.Where(x => current.Contains(x.Id)).Select(x => x.Id).ToList();
+            var parent =  data.Where(x => current.Contains(x.Id)).Select(x => x.ParentId).Where(x=>x!=null).Select(x=>(Guid)x).ToList();
        
             if (parent.Count() > 0)
             {