diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
index d6e4628f2..3fdb97f8c 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
@@ -3136,6 +3136,7 @@ namespace IRaCIS.Core.Application.Service
             await _readingCustomTagRepository.BatchDeleteNoTrackingAsync(x => x.VisitTaskId == inDto.VisitTaskId);
             await _visitTaskRepository.BatchUpdateNoTrackingAsync(x => x.Id == inDto.VisitTaskId, x => new VisitTask()
             {
+                TNMValue=string.Empty,
                 ReadingTaskState = ReadingTaskState.WaitReading
             });
             await _visitTaskRepository.SaveChangesAsync();