diff --git a/MonitorControl/Enums/PrefKey.swift b/MonitorControl/Enums/PrefKey.swift
index 3b08aff..76b5f29 100644
--- a/MonitorControl/Enums/PrefKey.swift
+++ b/MonitorControl/Enums/PrefKey.swift
@@ -191,6 +191,7 @@ enum MenuIcon: Int {
   case show = 0
   case sliderOnly = 1
   case hide = 2
+  case externalOnly = 3
 }
 
 enum MenuItemStyle: Int {