diff --git a/configs/home-manager/kitty.nix b/configs/home-manager/kitty.nix
index 0341713..66a327c 100644
--- a/configs/home-manager/kitty.nix
+++ b/configs/home-manager/kitty.nix
@@ -13,6 +13,10 @@
     themeFile = "gruvbox-dark";
     settings = {
       background_opacity = "0.8";
+      enable_audio_bell="yes";
+      visual_bell_duration = "0.5";
+      window_alert_on_bell="yes";
+      bell_on_tab="🔔";
     };
   };
 }
diff --git a/configs/home-manager/zsh.nix b/configs/home-manager/zsh.nix
index 689d576..9687400 100644
--- a/configs/home-manager/zsh.nix
+++ b/configs/home-manager/zsh.nix
@@ -49,6 +49,9 @@
           #the tre command has some shell integration.
           tre() { command tre "$@" --editor && source "/tmp/tre_aliases_$USER" 2>/dev/null; }
           tred() { command tre "$@" --editor=z --directories && source "/tmp/tre_aliases_$USER" 2>/dev/null; }
+
+          # Turn off terminal beep on autocomplete.
+          unsetopt BEEP
         ''
         (lib.mkIf (!config.programs.starship.enable) ''
           autoload -U promptinit