diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingClinicalDataDto.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingClinicalDataDto.cs
index 6f2d364bb..4b665a371 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingClinicalDataDto.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingClinicalDataDto.cs
@@ -190,10 +190,10 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public int Size { get; set; } = 0;
 
-        /// <summary>
-        /// 文件类型
-        /// </summary>
-        public string Type { get; set; }
+		/// <summary>
+		/// 文件类型
+		/// </summary>
+		public string Type { get; set; } = string.Empty;
     }