diff --git a/README.md b/README.md
index 966dbac4..9f6cf12c 100644
--- a/README.md
+++ b/README.md
@@ -133,8 +133,8 @@ ### Manual<a name="manual"></a>
 
 ```zsh
 ZINIT_HOME="${XDG_DATA_HOME:-${HOME}/.local/share}/zinit/zinit.git"
-mkdir -p "$(dirname $ZINIT_HOME)"
-git clone https://github.com/zdharma-continuum/zinit.git "$ZINIT_HOME"
+[ ! -d $ZINIT_HOME ] && mkdir -p "$(dirname $ZINIT_HOME)"
+[ ! -d $ZINIT_HOME/.git ] && git clone https://github.com/zdharma-continuum/zinit.git "$ZINIT_HOME"
 source "${ZINIT_HOME}/zinit.zsh"
 ```