diff --git a/pandas-stubs/core/indexes/timedeltas.pyi b/pandas-stubs/core/indexes/timedeltas.pyi
index 6cb94df77..e05506e49 100644
--- a/pandas-stubs/core/indexes/timedeltas.pyi
+++ b/pandas-stubs/core/indexes/timedeltas.pyi
@@ -83,4 +83,6 @@ def timedelta_range(
     freq: str | DateOffset | Timedelta | dt.timedelta | None = ...,
     name: Hashable | None = ...,
     closed: Literal["left", "right"] | None = ...,
+    *,
+    unit: None | str = ...,
 ) -> TimedeltaIndex: ...
diff --git a/tests/test_timefuncs.py b/tests/test_timefuncs.py
index de6a6e64b..4843c5139 100644
--- a/tests/test_timefuncs.py
+++ b/tests/test_timefuncs.py
@@ -1309,6 +1309,18 @@ def test_timedelta_range() -> None:
         ),
         pd.TimedeltaIndex,
     )
+    check(
+        assert_type(
+            pd.timedelta_range(
+                pd.Timedelta(1, unit="D"),
+                pd.Timedelta(10, unit="D"),
+                periods=10,
+                unit="s",
+            ),
+            pd.TimedeltaIndex,
+        ),
+        pd.TimedeltaIndex,
+    )
 
 
 def test_dateoffset_freqstr() -> None: