diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs
index 92c7f4814..4fab256f0 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs
@@ -1214,7 +1214,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
                                 break;
 							case SplitOrMergeType.MergeMain:
 							case SplitOrMergeType.MergeMained:
-								x.SplitOrMergeType = SplitOrMergeType.MergeMain;
+								x.SplitOrMergeType = SplitOrMergeType.MergeMained;
 								break;
                             default:
                                 x.SplitOrMergeType = null;