diff --git a/os/kvm-repo.sh b/os/kvm-repo.sh
index 908f74e..298efa0 100644
--- a/os/kvm-repo.sh
+++ b/os/kvm-repo.sh
@@ -20,7 +20,7 @@ yum_repo(){
     yum makecache && \
     echo "缓存创建完成"
 }
-ping -w2 -c2 $repo &>/dev/null
+ping -w2 -c2 "$repo" &>/dev/null
 if [ $? -eq 0 ];then
     repo_type=0
 else