diff --git a/xarray/namedarray/_typing.py b/xarray/namedarray/_typing.py
index a24398a693c..27c0bec59d7 100644
--- a/xarray/namedarray/_typing.py
+++ b/xarray/namedarray/_typing.py
@@ -78,7 +78,6 @@ def dtype(self) -> _DType_co: ...
 
 _Chunk = tuple[int, ...]
 _Chunks = tuple[_Chunk, ...]
-# _NormalizedChunks = tuple[tuple[int, ...], ...]  # TODO: Same as Chunks.
 _ChunksLike = Union[
     int, Literal["auto"], None, _Chunk, _Chunks
 ]  # TODO: Literal["auto"]