diff --git a/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi b/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi
index 0087f6bd04..73d22ce836 100644
--- a/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi
+++ b/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi
@@ -288,7 +288,7 @@ class HdfSerializer(GeometrySerializer):
     def isTesselated(self): ...
     def read(self, *args): ...
     def ready(self): ...
-    def remove(self, guid): ...
+    def remove(self, guid: str) -> None: ...
     def setFile(self, arg2): ...
     def setUnitNameAndMagnitude(self, arg2, arg3): ...
     def write(self, *args): ...
@@ -358,7 +358,7 @@ class Iterator:
         """
         ...
 
-    def set_cache(self, cache: GeometrySerializer): ...
+    def set_cache(self, cache: GeometrySerializer) -> None: ...
     def unit_magnitude(self): ...
     def unit_name(self): ...