diff --git a/zsh/.zshrc b/zsh/.zshrc
index 9a55adf..71bdf0a 100644
--- a/zsh/.zshrc
+++ b/zsh/.zshrc
@@ -61,7 +61,8 @@ alias mkvirtenv="python -m virtualenv --system-site-packages"
 alias e="emacsclient -t"
 alias nyan="nyancat"
 alias rm="rm -i"
-alias dir="du -hd 1"
+alias dir="du -h -d 1"
+alias gcsm="git commit -S -m"
 alias -s tex=emacs
 alias -s cpp=emacs