diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst
index 9b4afca9fd09..6de26d1c6a9a 100644
--- a/Documentation/core-api/cpu_hotplug.rst
+++ b/Documentation/core-api/cpu_hotplug.rst
@@ -45,11 +45,6 @@ Command Line Switches
 
   This option is limited to the X86 and S390 architecture.
 
-``cpu0_hotplug``
-  Allow to shutdown CPU0.
-
-  This option is limited to the X86 architecture.
-
 CPU maps
 ========