diff --git a/Lib/multiprocessing/process.py b/Lib/multiprocessing/process.py
index b034317..0b04e36 100644
--- a/Lib/multiprocessing/process.py
+++ b/Lib/multiprocessing/process.py
@@ -220,7 +220,8 @@
             self._children = set()
             self._counter = itertools.count(1)
             try:
-                os.close(sys.stdin.fileno())
+                sys.stdin.close()
+                sys.stdin = open(os.devnull)
             except (OSError, ValueError):
                 pass
             _current_process = self