diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index 0556819..81d674d 100644
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -209,7 +209,13 @@
 
   (when (memq window-system '(mac ns))
     (setq mac-option-modifier 'none
-          mac-command-modifier 'meta)
+          mac-command-modifier 'meta
+          visible-bell nil
+          ring-bell-function 'flash-mode-line)
+
+    (defun flash-mode-line ()
+      (invert-face 'mode-line)
+      (run-with-timer 0.1 nil #'invert-face 'mode-line))
 
     (add-to-list 'default-frame-alist '(ns-transparent-titlebar . t))
     (add-to-list 'default-frame-alist '(ns-appearance . dark))