diff --git a/Src/Common/Controls/DetailControls/DataTree.cs b/Src/Common/Controls/DetailControls/DataTree.cs
index f83c79bea9..f94ebc3cca 100644
--- a/Src/Common/Controls/DetailControls/DataTree.cs
+++ b/Src/Common/Controls/DetailControls/DataTree.cs
@@ -5302,6 +5302,7 @@ public DummyObjectSlice(int indent, XmlNode node, ArrayList path, ICmObject obj,
 			m_indent = indent;
 			m_node = node;
 			m_path = path;
+			m_key = path.ToArray(); // This fixes LT-22581.
 			m_obj = obj;
 			m_flid = flid;
 			m_ihvoMin = ihvoMin;