diff --git a/src/ifcopenshell-python/ifcopenshell/geom/main.py b/src/ifcopenshell-python/ifcopenshell/geom/main.py
index 22bc31ca94..1952ea1e01 100644
--- a/src/ifcopenshell-python/ifcopenshell/geom/main.py
+++ b/src/ifcopenshell-python/ifcopenshell/geom/main.py
@@ -446,6 +446,7 @@ def iterate(
     exclude: Optional[Union[list[entity_instance], list[str]]] = None,
     with_progress: Literal[False] = False,
     cache: Optional[serializers.hdf5] = None,
+    serializer_settings: Optional[serializer_settings] = None,
     geometry_library: GEOMETRY_LIBRARY = "opencascade",
 ) -> Generator[IteratorOutput, None, None]: ...
 @overload
@@ -457,6 +458,7 @@ def iterate(
     exclude: Optional[Union[list[entity_instance], list[str]]] = None,
     with_progress: Literal[True] = True,
     cache: Optional[serializers.hdf5] = None,
+    serializer_settings: Optional[serializer_settings] = None,
     geometry_library: GEOMETRY_LIBRARY = "opencascade",
 ) -> Generator[tuple[int, IteratorOutput], None, None]: ...
 @overload
@@ -468,6 +470,7 @@ def iterate(
     exclude: Optional[Union[list[entity_instance], list[str]]] = None,
     with_progress: bool = False,
     cache: Optional[serializers.hdf5] = None,
+    serializer_settings: Optional[serializer_settings] = None,
     geometry_library: GEOMETRY_LIBRARY = "opencascade",
 ) -> Generator[Union[IteratorOutput, tuple[int, IteratorOutput]], None, None]: ...
 def iterate(
@@ -478,11 +481,12 @@ def iterate(
     exclude: Optional[Union[list[entity_instance], list[str]]] = None,
     with_progress: bool = False,
     cache: Optional[serializers.hdf5] = None,
+    serializer_settings: Optional[serializer_settings] = None,
     geometry_library: GEOMETRY_LIBRARY = "opencascade",
 ) -> Generator[Union[IteratorOutput, tuple[int, IteratorOutput]], None, None]:
     it = iterator(settings, file_or_filename, num_threads, include, exclude, geometry_library)
     if cache:
-        hdf5_cache = serializers.hdf5(cache, settings)
+        hdf5_cache = serializers.hdf5(cache, settings, serializer_settings)
         it.set_cache(hdf5_cache)
     yield from consume_iterator(it, with_progress=with_progress)