diff --git a/download_offline_packages.sh.j2 b/download_offline_packages.sh.j2
index 03cb996..6853aa1 100644
--- a/download_offline_packages.sh.j2
+++ b/download_offline_packages.sh.j2
@@ -27,7 +27,7 @@ chmod +x kubeadm kubelet kubectl
 cd $curdir
 echo "[3] 下载镜像（kubeadm config images）"
 $TMP/bin/kubeadm config images list --kubernetes-version {{ kubernetes.version }} > $TMP/images/images.txt
-for img in "${cat $TMP/images/images.txt}"; do
+for img in $(cat $TMP/images/images.txt); do
     echo "Pull image: $img"
     docker pull $img
     docker save -o $TMP/images/$(echo $img | tr '/:' '_').tar $img