diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 26a1e69..c8db387 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -325,7 +325,7 @@
     if dev_mode:
         args.extend(('-X', 'dev'))
     for opt in ('faulthandler', 'tracemalloc', 'importtime',
-                'showalloccount', 'showrefcount', 'utf8'):
+                'showrefcount', 'utf8'):
         if opt in xoptions:
             value = xoptions[opt]
             if value is True: