diff --git a/sorts/odd_even_transposition_parallel.py b/sorts/odd_even_transposition_parallel.py
index 747899725094..a3f26be0a353 100644
--- a/sorts/odd_even_transposition_parallel.py
+++ b/sorts/odd_even_transposition_parallel.py
@@ -99,6 +99,8 @@ def odd_even_transposition(arr):
     >>> odd_even_transposition(unsorted_list) == sorted(unsorted_list + [1])
     False
     """
+    if not arr:
+        return arr
     # spawn method is considered safer than fork
     multiprocessing_context = mp.get_context("spawn")