diff --git a/Src/Common/Controls/DetailControls/Slice.cs b/Src/Common/Controls/DetailControls/Slice.cs
index bb76616fd7..10e1b16cfe 100644
--- a/Src/Common/Controls/DetailControls/Slice.cs
+++ b/Src/Common/Controls/DetailControls/Slice.cs
@@ -1130,7 +1130,7 @@ public virtual void GenerateChildren(XmlNode node, XmlNode caller, ICmObject obj
 				//				|| (fUseChildrenOfNode && XmlUtils.GetOptionalAttributeValue(node, "expansion") == "expanded")
 				//				|| (XmlUtils.GetOptionalAttributeValue(caller, "expansion") == "expanded")
 				//				|| Expansion == DataTree.TreeItemState.ktisCollapsedEmpty)
-				bool fExpand = XmlUtils.GetOptionalAttributeValue(node, "expansion") == "expanded";
+				bool fExpand = XmlUtils.GetOptionalAttributeValue(node, "expansion") != "doNotExpand";
 				if (fUsePersistentExpansion && m_mediator != null) // mediator null only in testing?
 				{
 					Expansion = DataTree.TreeItemState.ktisCollapsed; // Needs to be an expandable state to have ExpansionStateKey.