diff --git a/setup.sh b/setup.sh
index d9ca863..6ff3512 100644
--- a/setup.sh
+++ b/setup.sh
@@ -5,11 +5,14 @@ set +xe
 OZSH_HOME=$HOME/.ozsh
 
 # clone the repo
-git clone https://git.quacker.org/d/ozsh $OZSH_HOME/
+if [ ! -d "$OZSH_HOME" ]; then
+    git clone https://git.quacker.org/d/ozsh $OZSH_HOME/
+fi
 
 # pull submodules
 git -C $OZSH_HOME submodule update --init --recursive
 
 # link .zshrc
+rm -f $HOME/.zshrc
 ln -s $OZSH_HOME/.zshrc $HOME/.zshrc