diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index 60d58f8..831d5c7 100644
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -350,6 +350,12 @@
   :config
   (add-hook 'prog-mode-hook 'column-enforce-mode))
 
+(use-package show-marks :ensure
+  :config
+  :bind ("C-S-<left>" . backward-mark)
+  :bind ("C-S-<right>" . forward-mark)
+  :bind ("C-S-<down>" . show-marks))
+
 ;;;; optional external packages
 (use-package arduino-mode
   :mode "\\.pde\\'"