From c8d62477cc87fb198ac6a20328f66b5ed428afc8 Mon Sep 17 00:00:00 2001
From: Jedd Morgan <45512892+JR-Morgan@users.noreply.github.com>
Date: Tue, 15 Jul 2025 16:25:46 +0100
Subject: [PATCH] Add null check (#11)

---
 src/speckleifc/property_extraction.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/speckleifc/property_extraction.py b/src/speckleifc/property_extraction.py
index 82396dd..40e87e2 100644
--- a/src/speckleifc/property_extraction.py
+++ b/src/speckleifc/property_extraction.py
@@ -42,7 +42,9 @@ def _get_ifc_object_properties(element: entity_instance) -> dict[str, object]:
         if not rel.is_a("IfcRelDefinesByProperties"):
             continue
 
-        definition: entity_instance = rel.RelatingPropertyDefinition
+        definition: entity_instance | None = rel.RelatingPropertyDefinition
+        if not definition:
+            continue
 
         if not definition.is_a("IfcPropertySet"):
             continue