diff --git a/ScrollSwitcher/AppDelegate.swift b/ScrollSwitcher/AppDelegate.swift
index 1f88add..f76955b 100644
--- a/ScrollSwitcher/AppDelegate.swift
+++ b/ScrollSwitcher/AppDelegate.swift
@@ -14,14 +14,8 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     // things that need to be retained to keep them from disappearing
     private var prefPanesSupport: Bundle!
     private var item: NSStatusItem!
-    private var observation: NSKeyValueObservation?
     
     func applicationDidFinishLaunching(_ aNotification: Notification) {
-        
-        // this is where _setSwipeScrollDirection is defined
-        prefPanesSupport = Bundle(path: "/System/Library/PrivateFrameworks/PreferencePanesSupport.framework")
-        try! prefPanesSupport!.loadAndReturnError()
-        
         item = NSStatusBar.system.statusItem(withLength: NSStatusItem.squareLength)
         item.button!.target = self
         item.button!.action = #selector(menuItemClicked)
@@ -84,7 +78,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         // makes system preferences update
         DistributedNotificationCenter.default().postNotificationName(.swipeScrollDirectionDidChangeNotification, object: nil, userInfo: nil, deliverImmediately: false)
         // make the actual input behavior update
-        setSwipeScrollDirection(Int32(new.rawValue))
+        setSwipeScrollDirection(new == .natural)
     }
 
 }
@@ -96,7 +90,7 @@ extension AppDelegate: NSMenuDelegate {
     }
 }
 
-enum Direction: Int, Equatable {
+enum Direction: Equatable {
     case normal, natural
     
     static var current: Direction {
diff --git a/ScrollSwitcher/ScrollSwitcher-Bridging-Header.h b/ScrollSwitcher/ScrollSwitcher-Bridging-Header.h
index 1dfcdaf..1cf2f4b 100644
--- a/ScrollSwitcher/ScrollSwitcher-Bridging-Header.h
+++ b/ScrollSwitcher/ScrollSwitcher-Bridging-Header.h
@@ -8,6 +8,8 @@
 #ifndef ScrollSwitcher_Bridging_Header_h
 #define ScrollSwitcher_Bridging_Header_h
 
-void setSwipeScrollDirection(int arg0);
+#import <CoreFoundation/CoreFoundation.h>
+
+void setSwipeScrollDirection(BOOL natural);
 
 #endif /* ScrollSwitcher_Bridging_Header_h */