diff --git a/stdlib/@python2/copy_reg.pyi b/stdlib/@python2/copy_reg.pyi
index f6fe5cd28..5aec88298 100644
--- a/stdlib/@python2/copy_reg.pyi
+++ b/stdlib/@python2/copy_reg.pyi
@@ -3,7 +3,7 @@ from typing import Any, Callable, Hashable, Optional, SupportsInt, TypeVar, Unio
 _TypeT = TypeVar("_TypeT", bound=type)
 _Reduce = Union[tuple[Callable[..., _TypeT], tuple[Any, ...]], tuple[Callable[..., _TypeT], tuple[Any, ...], Optional[Any]]]
 
-__all__: list[str]
+__all__ = ["pickle", "constructor", "add_extension", "remove_extension", "clear_extension_cache"]
 
 def pickle(
     ob_type: _TypeT,
diff --git a/stdlib/@python2/copyreg.pyi b/stdlib/@python2/copyreg.pyi
index f6fe5cd28..5aec88298 100644
--- a/stdlib/@python2/copyreg.pyi
+++ b/stdlib/@python2/copyreg.pyi
@@ -3,7 +3,7 @@ from typing import Any, Callable, Hashable, Optional, SupportsInt, TypeVar, Unio
 _TypeT = TypeVar("_TypeT", bound=type)
 _Reduce = Union[tuple[Callable[..., _TypeT], tuple[Any, ...]], tuple[Callable[..., _TypeT], tuple[Any, ...], Optional[Any]]]
 
-__all__: list[str]
+__all__ = ["pickle", "constructor", "add_extension", "remove_extension", "clear_extension_cache"]
 
 def pickle(
     ob_type: _TypeT,
diff --git a/stdlib/copyreg.pyi b/stdlib/copyreg.pyi
index 609767083..401144a95 100644
--- a/stdlib/copyreg.pyi
+++ b/stdlib/copyreg.pyi
@@ -3,7 +3,7 @@ from typing import Any, Callable, Hashable, Optional, SupportsInt, TypeVar, Unio
 _TypeT = TypeVar("_TypeT", bound=type)
 _Reduce = Union[tuple[Callable[..., _TypeT], tuple[Any, ...]], tuple[Callable[..., _TypeT], tuple[Any, ...], Optional[Any]]]
 
-__all__: list[str]
+__all__ = ["pickle", "constructor", "add_extension", "remove_extension", "clear_extension_cache"]
 
 def pickle(
     ob_type: _TypeT,