diff --git a/pandas/core/algorithms.py b/pandas/core/algorithms.py
index 6088837550ecd..337c1910102a7 100644
--- a/pandas/core/algorithms.py
+++ b/pandas/core/algorithms.py
@@ -2208,7 +2208,7 @@ def _sort_mixed(values):
     return np.concatenate([nums, np.asarray(strs, dtype=object)])
 
 
-def _sort_tuples(values: np.ndarray[tuple]):
+def _sort_tuples(values: np.ndarray):
     """
     Convert array of tuples (1d) to array or array (2d).
     We need to keep the columns separately as they contain different types and