diff --git a/src/WorkFlow.Domain/Entities/PObject.cs b/src/WorkFlow.Domain/Entities/PObject.cs
index b441493..ba0c312 100644
--- a/src/WorkFlow.Domain/Entities/PObject.cs
+++ b/src/WorkFlow.Domain/Entities/PObject.cs
@@ -27,4 +27,7 @@ public class PObject
 
     [ForeignKey("ObjStateId")]
     public virtual PObjectState? State { get; set; }
+
+    [ForeignKey("ObjStateId")]
+    public virtual IEnumerable<PObjectStateHist>? StateHistory { get; set; } = Array.Empty<PObjectStateHist>();
 }
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