diff --git a/emacs.el b/emacs.el
index cfa2ef4..9859898 100644
--- a/emacs.el
+++ b/emacs.el
@@ -121,6 +121,8 @@
 (use-package undo-tree
   :config
   (global-undo-tree-mode)
+  :custom
+  (undo-tree-auto-save-history nil)
   :delight)
 
 (use-package which-key
@@ -173,6 +175,6 @@
   :bind (("C-." . company-complete)))
 
 (use-package ace-window
-  :config
-  (setq aw-keys '(?h ?i ?e ?a ?t ?r ?n ?s))
+  :custom
+  (aw-keys '(?h ?i ?e ?a ?t ?r ?n ?s))
   :bind (("C-x o" . ace-window)))