diff --git a/MonitorControl/AppDelegate.swift b/MonitorControl/AppDelegate.swift
index 9c5fb01..97b6719 100644
--- a/MonitorControl/AppDelegate.swift
+++ b/MonitorControl/AppDelegate.swift
@@ -129,7 +129,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     if let edid = ddc?.edid() {
       let name = Utils.getDisplayName(forEdid: edid)
 
-      let display = Display(id, name: name)
+      let display = Display(id, name: name, isBuiltin: screen.isBuiltin)
 
       let monitorSubMenu: NSMenu = asSubMenu ? NSMenu() : self.statusMenu
 
diff --git a/MonitorControl/Display.swift b/MonitorControl/Display.swift
index 40a7b42..72e8f02 100644
--- a/MonitorControl/Display.swift
+++ b/MonitorControl/Display.swift
@@ -6,6 +6,7 @@ import os.log
 class Display {
   let identifier: CGDirectDisplayID
   let name: String
+  let isBuiltin: Bool
   var isEnabled: Bool
   var isMuted: Bool = false
   var brightnessSliderHandler: SliderHandler?
@@ -16,11 +17,12 @@ class Display {
   private let prefs = UserDefaults.standard
   private var audioPlayer: AVAudioPlayer?
 
-  init(_ identifier: CGDirectDisplayID, name: String, isEnabled: Bool = true) {
+  init(_ identifier: CGDirectDisplayID, name: String, isBuiltin: Bool, isEnabled: Bool = true) {
     self.identifier = identifier
     self.name = name
-    self.isEnabled = isEnabled
+    self.isEnabled = isBuiltin ? false : isEnabled
     self.ddc = DDC(for: identifier)
+    self.isBuiltin = isBuiltin
     self.isMuted = self.getValue(for: .audioMuteScreenBlank) == 1
   }
 
diff --git a/MonitorControl/Info.plist b/MonitorControl/Info.plist
index 27a1efb..a9bbddf 100644
--- a/MonitorControl/Info.plist
+++ b/MonitorControl/Info.plist
@@ -19,7 +19,7 @@
 	<key>CFBundleShortVersionString</key>
 	<string>1.5.2</string>
 	<key>CFBundleVersion</key>
-	<string>533</string>
+	<string>560</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.utilities</string>
 	<key>LSMinimumSystemVersion</key>