diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingClinicalDataService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingClinicalDataService.cs
index 59e6416ee..c9a55ae3f 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingClinicalDataService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingClinicalDataService.cs
@@ -251,7 +251,7 @@ namespace IRaCIS.Application.Services
             ReadModule readModule = null;
             if (inDto.ReadingId != null)
             {
-                readModule = await _readModuleRepository.Where(x => x.Id ==inDto.ReadingId).FirstNotNullAsync();
+                readModule = await _readModuleRepository.Where(x => x.Id ==inDto.ReadingId).FirstOrDefaultAsync();
             }
 
             Dictionary<ModuleTypeEnum, ClinicalLevel> keyValuePairs = new Dictionary<ModuleTypeEnum, ClinicalLevel>();