diff --git a/src/ifcopenshell-python/ifcopenshell/geom/main.py b/src/ifcopenshell-python/ifcopenshell/geom/main.py
index 6dbed7a69b..096acef400 100644
--- a/src/ifcopenshell-python/ifcopenshell/geom/main.py
+++ b/src/ifcopenshell-python/ifcopenshell/geom/main.py
@@ -37,7 +37,9 @@ if TYPE_CHECKING:
 
 T = TypeVar("T")
 ShapeElementType = Union[
-    ifcopenshell_wrapper.native_element, ifcopenshell_wrapper.triangulation_element, ifcopenshell_wrapper.serialized_element
+    ifcopenshell_wrapper.native_element,
+    ifcopenshell_wrapper.triangulation_element,
+    ifcopenshell_wrapper.serialized_element,
 ]
 ShapeType = Union[ifcopenshell_wrapper.native, ifcopenshell_wrapper.triangulation, ifcopenshell_wrapper.serialization]