diff --git a/IRaCIS.Core.Domain/Reading/ClinicalData/ClinicalDataTrialSet.cs b/IRaCIS.Core.Domain/Reading/ClinicalData/ClinicalDataTrialSet.cs
index c358e751c..c46e93b7d 100644
--- a/IRaCIS.Core.Domain/Reading/ClinicalData/ClinicalDataTrialSet.cs
+++ b/IRaCIS.Core.Domain/Reading/ClinicalData/ClinicalDataTrialSet.cs
@@ -49,8 +49,9 @@ namespace IRaCIS.Core.Domain.Models
         public Guid? SystemClinicalDataSetId { get; set; }
 
 		/// <summary>
-		/// 系统的ClinicalDataSet
+		/// SystemClinicalDataSetId
 		/// </summary>
+		[ForeignKey("SystemClinicalDataSetId")]
 		public ClinicalDataSystemSet? ClinicalDataSystemSet { get; set; }
 
 		/// <summary>