diff --git a/.config/zsh/aliases.zsh b/.config/zsh/aliases.zsh
index 7338004..028a1ec 100644
--- a/.config/zsh/aliases.zsh
+++ b/.config/zsh/aliases.zsh
@@ -72,17 +72,19 @@ alias lessf='LESSOPEN="" less +F'
 alias cp='cp --reflink=auto --preserve=all'
 alias mv='nocorrect mv'
 alias mkdir='nocorrect mkdir'
+alias cat='cat-highlight'
 
 alias ip='ip -color -brief'
 
 # Add --accept=".jpg,.png" or whatever.
 alias wget_leech='wget --no-directories --page-requisites --span-hosts'
 
-alias cat='cat-highlight'
-
-alias machklein='mksmol'
 
 alias diff='diff --color=auto'
+alias alert='print -n "\a"'
+
+# deprecated
+alias machklein='mksmol'
 
 # OS specific settings.
 if [[ -f /etc/gentoo-release ]]; then