diff --git a/debian.cfg b/debian.cfg
index 910e327..d66b103 100644
--- a/debian.cfg
+++ b/debian.cfg
@@ -39,15 +39,15 @@ d-i time/zone string Asia/Shanghai
 d-i partman-auto/method string regular
 d-i partman-lvm/device_remove_lvm boolean true
 d-i partman-md/device_remove_md boolean true
-d-i partman-auto/expert_recipe string
+d-i partman-auto/expert_recipe string    \
       boot-root ::    \
               5120 1 112640 ext4         \
                       $primary{ } $bootable{ }                \
 
                       method{ format } format{ }              \
                       use_filesystem{ } filesystem{ ext4 }    \
-                      mountpoint{ / }                         \
-              .                                               \
+                      mountpoint{ / }     \
+              .
 d-i partman-partitioning/confirm_write_new_label boolean true
 d-i partman/choose_partition select finish
 d-i partman/confirm boolean true