diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..1c8076b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "_z"]
+	path = _z
+	url = https://github.com/rupa/z.git
diff --git a/_z b/_z
new file mode 160000
index 0000000..771c584
--- /dev/null
+++ b/_z
@@ -0,0 +1 @@
+Subproject commit 771c58409b5057d2bf621ac29604a573d6de0d77
diff --git a/_zshrc b/_zshrc
index 0ebfe87..9d885fa 100644
--- a/_zshrc
+++ b/_zshrc
@@ -77,3 +77,10 @@ bindkey '^R' history-incremental-search-backward
 fpath=(${HOME}/.zsh/completions $fpath)
 
 [ -s "$HOME/.scm_breeze/scm_breeze.sh" ] && source "$HOME/.scm_breeze/scm_breeze.sh"
+
+# z
+export _Z_DATA="$HOME/.zdata"
+. $HOME/.z/z.sh
+    function precmd () {
+      _z --add "$(pwd -P)"
+    }