From c39fe6e8a3f4a366f54cb073945cff54bbb58d30 Mon Sep 17 00:00:00 2001
From: Richard Brice <37087370+RickBrice@users.noreply.github.com>
Date: Thu, 23 Apr 2026 08:40:05 -0700
Subject: [PATCH] Fixes bug in addRelatedObject<> for
 IfcRelReferencedInSpatialStructure

---
 src/ifcparse/IfcHierarchyHelper.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ifcparse/IfcHierarchyHelper.h b/src/ifcparse/IfcHierarchyHelper.h
index 019cbf69c1..cfe37b3717 100644
--- a/src/ifcparse/IfcHierarchyHelper.h
+++ b/src/ifcparse/IfcHierarchyHelper.h
@@ -475,7 +475,7 @@ class IFC_PARSE_API IfcHierarchyHelper : public IfcParse::IfcFile {
                 t->set_attribute_value(1, owner_hist);
                 int relating_index = 4;
                 int related_index = 5;
-                if (T::Class().name() == "IfcRelContainedInSpatialStructure" || std::is_base_of<typename Schema::IfcRelDefines, T>::value) {
+                if (T::Class().name() == "IfcRelContainedInSpatialStructure" || T::Class().name() == "IfcRelReferencedInSpatialStructure" || std::is_base_of<typename Schema::IfcRelDefines, T>::value) {
                     // some classes have attributes reversed.
                     std::swap(relating_index, related_index);
                 }