diff --git a/searches/double_linear_search_recursion.py b/searches/double_linear_search_recursion.py
index 1c483e974ca7..16d55d863cc8 100644
--- a/searches/double_linear_search_recursion.py
+++ b/searches/double_linear_search_recursion.py
@@ -1,4 +1,7 @@
-def search(list_data: list, key: int, left: int = 0, right: int = 0) -> int:
+from __future__ import annotations
+
+
+def search(list_data: list[int], key: int, left: int = 0, right: int = 0) -> int:
     """
     Iterate through the array to find the index of key using recursion.
     :param list_data: the list to be searched