diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalDataServiceViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalDataServiceViewModel.cs
index 8e0dd533f..fd279e1a1 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalDataServiceViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalDataServiceViewModel.cs
@@ -16,7 +16,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// 是否应用
         /// </summary>
-        public bool IsApply { get; set; } = false;
+        public bool? IsApply { get; set; }
 
         /// <summary>
         /// 名称