diff --git a/changelogs/fragments/fix-reboot-plugin.yml b/changelogs/fragments/fix-reboot-plugin.yml
new file mode 100644
index 00000000000..6dfd2b6bf16
--- /dev/null
+++ b/changelogs/fragments/fix-reboot-plugin.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - Stopped misleadingly advertising ``async`` mode support in the ``reboot`` module (https://github.com/ansible/ansible/issues/71517).
diff --git a/lib/ansible/plugins/action/reboot.py b/lib/ansible/plugins/action/reboot.py
index e4b42ecde4f..e3a4267759d 100644
--- a/lib/ansible/plugins/action/reboot.py
+++ b/lib/ansible/plugins/action/reboot.py
@@ -408,7 +408,6 @@ class ActionModule(ActionBase):
 
     def run(self, tmp=None, task_vars=None):
         self._supports_check_mode = True
-        self._supports_async = True
 
         # If running with local connection, fail so we don't reboot ourselves
         if self._connection.transport == 'local':