diff --git a/wheel/python/chia_rs/sized_bytes.py b/wheel/python/chia_rs/sized_bytes.py
index f68855fbc..779f96eec 100644
--- a/wheel/python/chia_rs/sized_bytes.py
+++ b/wheel/python/chia_rs/sized_bytes.py
@@ -41,3 +41,6 @@ def _add_zeros():
     for cls in list(globals().values()):
         if isinstance(cls, type) and cls is not SizedBytes and issubclass(cls, SizedBytes):
             cls.zeros = cls(b"\x00" * cls._size)
+
+
+_add_zeros()