diff --git a/modules/emacs.el b/modules/emacs.el
index b95e82c..ac8d44e 100644
--- a/modules/emacs.el
+++ b/modules/emacs.el
@@ -40,6 +40,7 @@
     volatile-highlights
     which-key
     whole-line-or-region
+    winner
     ws-butler)
 
   )
@@ -639,6 +640,14 @@
     :config
     (volatile-highlights-mode t))
 
+  ;; --------------------------------------------------------------------------
+  ;; `winner' - undo/redo window configuration.
+  ;; --------------------------------------------------------------------------
+
+  (use-package winner
+    :init (winner-mode 1)
+    :bind (("C-z" . winner-undo)))
+
   ;; --------------------------------------------------------------------------
   ;; `which-key'
   ;; --------------------------------------------------------------------------