diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs
index 5021066be..cc810ca34 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs
@@ -390,7 +390,7 @@ namespace IRaCIS.Core.Application.Contracts
 
         public string HtmlPath { get; set; } = string.Empty;
 
-        public decimal FileFize { get; set; }
+        public long FileSize { get; set; }                   
     }
 
     public class CRCUploadTaskQuery