diff --git a/modules/nixos/base/user-group.nix b/modules/nixos/base/user-group.nix
index b1422203..d1be5863 100644
--- a/modules/nixos/base/user-group.nix
+++ b/modules/nixos/base/user-group.nix
@@ -20,7 +20,6 @@
   };
 
   users.users."${myvars.username}" = {
-    # generated by `mkpasswd -m scrypt`
     # we have to use initialHashedPassword here when using tmpfs for /
     inherit (myvars) initialHashedPassword;
     home = "/home/${myvars.username}";
diff --git a/vars/default.nix b/vars/default.nix
index e02ade3e..a4acd7f6 100644
--- a/vars/default.nix
+++ b/vars/default.nix
@@ -3,7 +3,7 @@
   userfullname = "Ryan Yin";
   useremail = "xiaoyin_c@qq.com";
   networking = import ./networking.nix {inherit lib;};
-  # generated by `mkpasswd -m scrypt`
+  # generated by `mkpasswd -m scrypt --rounds=11`
   initialHashedPassword = "$7$CU..../....KDvTIXqLTXpmCaoUy2yC9.$145eM358b7Q0sRXgEBvxctd5EAuEEdao57LmZjc05D.";
   # Public Keys that can be used to login to all my PCs, Macbooks, and servers.
   #