diff --git a/AVRsack/ASPreferences.swift b/AVRsack/ASPreferences.swift
index c24cc8b..1dc3b16 100644
--- a/AVRsack/ASPreferences.swift
+++ b/AVRsack/ASPreferences.swift
@@ -13,9 +13,12 @@ private let kASToolchainArduino     = 1
 private let kASToolchainOther       = 2
 
 class ASPreferences: NSWindowController, NSOpenSavePanelDelegate {
-     dynamic var toolchainPref : String = "" {
-        didSet(oldPref) {
-            NSUserDefaults.standardUserDefaults().setObject(toolchainPref, forKey: "Toolchain")
+    var toolchainPref : String {
+        get {
+            return NSUserDefaults.standardUserDefaults().objectForKey("Toolchain") as String
+        }
+        set(newToolchain) {
+            NSUserDefaults.standardUserDefaults().setObject(newToolchain, forKey: "Toolchain")
         }
     }
     var toolchainType : Int {
@@ -63,11 +66,6 @@ class ASPreferences: NSWindowController, NSOpenSavePanelDelegate {
         self.init(windowNibName:"ASPreferences")
     }
     
-    override func awakeFromNib() {
-        super.awakeFromNib()
-        toolchainPref = NSUserDefaults.standardUserDefaults().objectForKey("Toolchain") as String
-    }
-    
     var hasCrossPackAVR : Bool {
         get {
             return NSFileManager.defaultManager().fileExistsAtPath("/usr/local/CrossPack-AVR/bin")