diff --git a/pkgs/by-name/ni/nixos-option/nixos-option.nix b/pkgs/by-name/ni/nixos-option/nixos-option.nix
index 3d26fea6ec1bab..9ffe7beb62c669 100644
--- a/pkgs/by-name/ni/nixos-option/nixos-option.nix
+++ b/pkgs/by-name/ni/nixos-option/nixos-option.nix
@@ -1,11 +1,11 @@
 {
-  nixos ? import <nixpkgs/nixos> { },
+  nixos,
   # list representing a nixos option path (e.g. ['console' 'enable']), or a
   # prefix of such a path (e.g. ['console']), or a string representing the same
   # (e.g. 'console.enable')
   path,
   # whether to recurse down the config attrset and show each set value instead
-  recursive ? false,
+  recursive,
 }:
 
 let
diff --git a/pkgs/by-name/ni/nixos-option/nixos-option.sh b/pkgs/by-name/ni/nixos-option/nixos-option.sh
index c5a977d494567f..3c4a39626e5880 100644
--- a/pkgs/by-name/ni/nixos-option/nixos-option.sh
+++ b/pkgs/by-name/ni/nixos-option/nixos-option.sh
@@ -5,7 +5,7 @@ set -eou pipefail
 recursive=false
 no_flake=false
 positional_args=()
-nix_args=()
+nix_args=(--arg nixos "import <nixpkgs/nixos> { }")
 flake=""
 
 while [[ $# -gt 0 ]]; do