diff --git a/modules/nixos/hardware/bootloader/default.nix b/modules/nixos/hardware/bootloader/default.nix
index 0dc517e..8c08b96 100644
--- a/modules/nixos/hardware/bootloader/default.nix
+++ b/modules/nixos/hardware/bootloader/default.nix
@@ -4,7 +4,7 @@
   namespace,
   ...
 }: let
-  inherit (lib) mkIf mkEnableOption;
+  inherit (lib) mkIf mkEnableOption mkForce;
   inherit (lib.${namespace}) getAttrByNamespace mkOptionsWithNamespace;
   base = "${namespace}.hardware.bootloader";
   cfg = getAttrByNamespace config base;
@@ -18,7 +18,7 @@ in {
       grub = {
         enable = true;
         efiSupport = true;
-        device = "nodev";
+        devices = mkForce ["nodev"];
       };
 
       efi.canTouchEfiVariables = true;
diff --git a/systems/disko.nix b/systems/disko.nix
index 61e8384..cc9b215 100644
--- a/systems/disko.nix
+++ b/systems/disko.nix
@@ -45,7 +45,7 @@
       };
     };
   };
-  extraDisks = builtins.listToAttrs (builtins.map (d: {
+  extraDisks = builtins.listToAttrs (map (d: {
       name = d;
       value = {
         device = d;