diff --git a/.hub/jupyter_config_backup.py b/.hub/jupyter_config_backup.py
index da09895..0557042 100644
--- a/.hub/jupyter_config_backup.py
+++ b/.hub/jupyter_config_backup.py
@@ -58,6 +58,8 @@ def prepare_user(spawner: Spawner):
     if user_dir.exists():
         shutil.rmtree(user_dir)
     user_dir.mkdir(mode=0o700, parents=True, exist_ok=True)
+    # 关键：让 systemd 能进去
+    shutil.chown(user_dir, user=username, group=username)
 
     # 2. 读控制表
     res_map, _ = load_ctrl()