From 64d98f129521102fab02073e7edb8d4c356d279e Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Mon, 1 May 2023 20:16:39 +0200
Subject: [PATCH] #2676

---
 src/ifcopenshell-python/ifcopenshell/geom/occ_utils.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ifcopenshell-python/ifcopenshell/geom/occ_utils.py b/src/ifcopenshell-python/ifcopenshell/geom/occ_utils.py
index 2d5be63210..3f2446fddd 100644
--- a/src/ifcopenshell-python/ifcopenshell/geom/occ_utils.py
+++ b/src/ifcopenshell-python/ifcopenshell/geom/occ_utils.py
@@ -216,6 +216,11 @@ def get_bounding_box_center(bbox):
 
 def serialize_shape(shape):
     shapes = BRepTools.BRepTools_ShapeSet()
+
+    # @todo provide method to get ifcopenshell's built-in occt version to
+    # see whether this is necessary
+    shapes.SetFormatNb(2)
+
     shapes.Add(shape)
     return shapes.WriteToString()