2 files changed, 5 insertions, 1 deletions
diff --git a/nixos/modules/security/ca.nix b/nixos/modules/security/ca.nix
index 67469be18b41..1c4ee421fc56 100644
--- a/nixos/modules/security/ca.nix
+++ b/nixos/modules/security/ca.nix
@@ -14,6 +14,7 @@ let
     { files =
         cfg.certificateFiles ++
         [ (builtins.toFile "extra.crt" (concatStringsSep "\n" cfg.certificates)) ];
+      preferLocalBuild = true;
      }
     ''
       cat $files > $out
diff --git a/nixos/modules/security/sudo.nix b/nixos/modules/security/sudo.nix
index 69a2a4f8f9ae..573588aaeecc 100644
--- a/nixos/modules/security/sudo.nix
+++ b/nixos/modules/security/sudo.nix
@@ -215,7 +215,10 @@ in
     environment.etc = singleton
       { source =
           pkgs.runCommand "sudoers"
-          { src = pkgs.writeText "sudoers-in" cfg.configFile; }
+          {
+            src = pkgs.writeText "sudoers-in" cfg.configFile;
+            preferLocalBuild = true;
+          }
           # Make sure that the sudoers file is syntactically valid.
           # (currently disabled - NIXOS-66)
           "${pkgs.buildPackages.sudo}/sbin/visudo -f $src -c && cp $src $out";