diff --git a/stdlib/_operator.pyi b/stdlib/_operator.pyi
index 565bb41697f1..066a0a167c5b 100644
--- a/stdlib/_operator.pyi
+++ b/stdlib/_operator.pyi
@@ -132,7 +132,7 @@ def setitem(a: MutableSequence[_T], b: slice[int | None], c: Sequence[_T], /) ->
 @overload
 def setitem(a: MutableMapping[_K, _V], b: _K, c: _V, /) -> None: ...
 
-def length_hint(obj: object, default: int = 0, /) -> int: ...
+def length_hint(obj: object, default: SupportsIndex = 0, /) -> int: ...
 def iadd(a, b, /): ...
 def iand(a, b, /): ...
 def iconcat(a, b, /): ...