diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
index f0c8846eb..3f0d437b6 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
@@ -1929,7 +1929,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public string? MarkTool { get; set; } 
 
-		public decimal? RowIndex { get; set; }
+		public decimal RowIndex { get; set; }
 
         /// <summary>
         /// 截图地址