diff --git a/python/ucxx/ucxx/examples/python_future_task.h b/python/ucxx/ucxx/examples/python_future_task.h
index 6e8974c05..e46fcdb5b 100644
--- a/python/ucxx/ucxx/examples/python_future_task.h
+++ b/python/ucxx/ucxx/examples/python_future_task.h
@@ -1,5 +1,5 @@
 /**
- * SPDX-FileCopyrightText: Copyright (c) 2022-2023, NVIDIA CORPORATION & AFFILIATES.
+ * SPDX-FileCopyrightText: Copyright (c) 2022-2026, NVIDIA CORPORATION & AFFILIATES.
  * SPDX-License-Identifier: BSD-3-Clause
  */
 #pragma once
@@ -15,6 +15,7 @@
 #include <sstream>
 #include <string>
 #include <time.h>
+#include <unistd.h>
 #include <utility>
 #include <vector>