diff --git a/stdlib/timeit.pyi b/stdlib/timeit.pyi
index d82dd8059..201eb4a2e 100644
--- a/stdlib/timeit.pyi
+++ b/stdlib/timeit.pyi
@@ -25,7 +25,4 @@ def repeat(
     number: int = ...,
     globals: dict[str, Any] | None = ...,
 ) -> list[float]: ...
-
-_timerFunc = Callable[[], float]
-
-def main(args: Sequence[str] | None = ..., *, _wrap_timer: Callable[[_timerFunc], _timerFunc] | None = ...) -> None: ...
+def main(args: Sequence[str] | None = ..., *, _wrap_timer: Callable[[_Timer], _Timer] | None = ...) -> None: ...