diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/OCTCalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/OCTCalculateService.cs
index f00f83cd3..fff67a673 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/OCTCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/OCTCalculateService.cs
@@ -994,7 +994,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
                 // 平均最小FCT
                 tableAnswers.Add(new ReadingTableQuestionAnswer()
                 {
-                    Answer = oCTFCTInfos.Count() == 0 ? "0.00" : GetDigitPlacesData(oCTFCTInfos.Where(x => x.PlaqueNum == item).Average(x => x.Data).ToString()),
+                    Answer = oCTFCTInfos.Where(x => x.PlaqueNum == item).Count() == 0 ? "0.00" : GetDigitPlacesData(oCTFCTInfos.Where(x => x.PlaqueNum == item).Average(x => x.Data).ToString()),
                     Id = NewId.NextGuid(),
                     QuestionId = patchDataStatisticsInfo.Id,
                     TrialId = inDto.TrialId,