diff --git a/app.sh b/app.sh
index f6d7e26..6a369f6 100644
--- a/app.sh
+++ b/app.sh
@@ -7,7 +7,7 @@
 
   echo "clone repository..."
   GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -i $GIT_REPO_DEPLOY_KEY" git clone "$GIT_REPO_URL" "$GIT_REPO_PATH" --quiet > /dev/null
-  cd "$GIT_REPO_PATH"
+  cd "$GIT_REPO_PATH" || exit
 
 while true ; do
   echo "pull repository..."