diff --git a/nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix b/nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix
index c07567ec..ecd69f04 100644
--- a/nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix
+++ b/nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix
@@ -33,16 +33,14 @@ let
     netbootxyz = if cfg.netbootxyz.enable then pkgs.netbootxyz-efi else "";

     copyExtraFiles = pkgs.writeShellScript "copy-extra-files" ''
-      empty_file=$(${pkgs.coreutils}/bin/mktemp)
-
       ${concatStrings (mapAttrsToList (n: v: ''
         ${pkgs.coreutils}/bin/install -Dp "${v}" "${efi.efiSysMountPoint}/"${escapeShellArg n}
-        ${pkgs.coreutils}/bin/install -D $empty_file "${efi.efiSysMountPoint}/efi/nixos/.extra-files/"${escapeShellArg n}
+        ${pkgs.coreutils}/bin/install -D /dev/null "${efi.efiSysMountPoint}/efi/nixos/.extra-files/"${escapeShellArg n}
       '') cfg.extraFiles)}

       ${concatStrings (mapAttrsToList (n: v: ''
         ${pkgs.coreutils}/bin/install -Dp "${pkgs.writeText n v}" "${efi.efiSysMountPoint}/loader/entries/"${escapeShellArg n}
-        ${pkgs.coreutils}/bin/install -D $empty_file "${efi.efiSysMountPoint}/efi/nixos/.extra-files/loader/entries/"${escapeShellArg n}
+        ${pkgs.coreutils}/bin/install -D /dev/null "${efi.efiSysMountPoint}/efi/nixos/.extra-files/loader/entries/"${escapeShellArg n}
       '') cfg.extraEntries)}
     '';
   };