diff --git a/src/apps/Menu/src/MenuController.swift b/src/apps/Menu/src/MenuController.swift
index 19dd1e463..bfa04a9cb 100644
--- a/src/apps/Menu/src/MenuController.swift
+++ b/src/apps/Menu/src/MenuController.swift
@@ -236,6 +236,7 @@ public class MenuController: NSObject, NSMenuDelegate {
   @objc
   func quitKarabiner(_: Any) {
     KarabinerAppHelper.shared.quitKarabiner(
-      askForConfirmation: LibKrbn.Settings.shared.askForConfirmationBeforeQuitting)
+      askForConfirmation: LibKrbn.Settings.shared.askForConfirmationBeforeQuitting,
+      quitFrom: .menu)
   }
 }
diff --git a/src/apps/SettingsWindow/src/View/ActionView.swift b/src/apps/SettingsWindow/src/View/ActionView.swift
index 40608d773..20819d837 100644
--- a/src/apps/SettingsWindow/src/View/ActionView.swift
+++ b/src/apps/SettingsWindow/src/View/ActionView.swift
@@ -24,7 +24,8 @@ struct ActionView: View {
             Button(
               action: {
                 KarabinerAppHelper.shared.quitKarabiner(
-                  askForConfirmation: settings.askForConfirmationBeforeQuitting)
+                  askForConfirmation: settings.askForConfirmationBeforeQuitting,
+                  quitFrom: .settings)
               },
               label: {
                 Label("Quit Karabiner-Elements", systemImage: "xmark.circle.fill")
diff --git a/src/apps/share/swift/KarabinerAppHelper.swift b/src/apps/share/swift/KarabinerAppHelper.swift
index eb4816971..526131cf8 100644
--- a/src/apps/share/swift/KarabinerAppHelper.swift
+++ b/src/apps/share/swift/KarabinerAppHelper.swift
@@ -20,7 +20,12 @@ final class KarabinerAppHelper {
     }
   }
 
-  func quitKarabiner(askForConfirmation: Bool) {
+  enum QuitFrom {
+    case menu
+    case settings
+  }
+
+  func quitKarabiner(askForConfirmation: Bool, quitFrom: QuitFrom) {
     if askForConfirmation {
       let alert = NSAlert()
       alert.messageText = "Are you sure you want to quit Karabiner-Elements?"
@@ -32,15 +37,19 @@ final class KarabinerAppHelper {
 
       let result = alert.runModal()
       if result == .OK {
-        quitKarabiner(askForConfirmation: false)
+        quitKarabiner(
+          askForConfirmation: false,
+          quitFrom: quitFrom)
       }
     } else {
-      ProcessInfo.processInfo.disableSuddenTermination()
-
-      libkrbn_services_unregister_all_agents()
-      libkrbn_killall_settings()
-
-      ProcessInfo.processInfo.enableSuddenTermination()
+      switch quitFrom {
+      case .menu:
+        libkrbn_killall_settings()
+        libkrbn_services_unregister_all_agents()
+      case .settings:
+        libkrbn_services_unregister_all_agents()
+        libkrbn_killall_settings()
+      }
     }
   }
 }
diff --git a/src/share/services_utility.hpp b/src/share/services_utility.hpp
index 7284773ce..114d22134 100644
--- a/src/share/services_utility.hpp
+++ b/src/share/services_utility.hpp
@@ -122,9 +122,13 @@ inline void bootout_old_agents(void) {
 
 inline void unregister_all_agents(void) {
   unregister_core_agents();
-  unregister_menu_agent();
   unregister_multitouch_extension_agent();
   unregister_notification_window_agent();
+
+  // `unregister_all_agents` might be called within Karabiner-Menu.app.
+  // In that case, `unregister_menu_agent` will terminate itself,
+  // so it needs to be called after unregistering other services.
+  unregister_menu_agent();
 }
 
 inline bool core_daemons_enabled(void) {