diff --git a/modules/hooks.nix b/modules/hooks.nix
index bb194ee..8505794 100644
--- a/modules/hooks.nix
+++ b/modules/hooks.nix
@@ -2848,7 +2848,7 @@ lib.escapeShellArgs (lib.concatMap (ext: [ "--ghc-opt" "-X${ext}" ]) hooks.ormol
         {
           name = "nixfmt";
           description = "Nix code prettifier.";
-          package = tools.nixfmt;
+          package = tools.nixfmt-classic;
           entry = "${hooks.nixfmt.package}/bin/nixfmt ${lib.optionalString (hooks.nixfmt.settings.width != null) "--width=${toString hooks.nixfmt.settings.width}"}";
           files = "\\.nix$";
         };
diff --git a/nix/tools.nix b/nix/tools.nix
index 9bcc89d..9fec5d5 100644
--- a/nix/tools.nix
+++ b/nix/tools.nix
@@ -44,7 +44,7 @@
 , mdl
 , mdsh
 , nil
-, nixfmt
+, nixfmt-classic
 , nixpkgs-fmt
 , nodePackages
 , ocamlPackages
@@ -131,7 +131,7 @@ in
     mdl
     mdsh
     nil
-    nixfmt
+    nixfmt-classic
     nixpkgs-fmt
     ormolu
     pre-commit-hook-ensure-sops