diff --git a/BusinessLogic.Contracts/StructureNodeResult.cs b/BusinessLogic.Contracts/StructureNodeResult.cs
index bd53e8e..e2961cd 100644
--- a/BusinessLogic.Contracts/StructureNodeResult.cs
+++ b/BusinessLogic.Contracts/StructureNodeResult.cs
@@ -4,4 +4,5 @@ public class StructureNodeResult
 {
     public long Id { get; set; }
     public long DocumentId { get; set; }
+    public long ParentId { get; set; }
 }
\ No newline at end of file