diff --git a/pkgs/development/ocaml-modules/ocamlformat-mlx/default.nix b/pkgs/development/ocaml-modules/ocamlformat-mlx/default.nix
new file mode 100644
index 000000000000..a198a7a36f6b
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ocamlformat-mlx/default.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  buildDunePackage,
+  fetchFromGitHub,
+  cmdliner,
+  odoc,
+  ocamlformat-mlx-lib,
+  re,
+}:
+buildDunePackage rec {
+  pname = "ocamlformat-mlx";
+  minimalOcamlVersion = "4.08";
+
+  inherit (ocamlformat-mlx-lib) version src meta;
+
+  buildInputs = [
+    cmdliner
+    re
+    odoc
+    ocamlformat-mlx-lib
+  ];
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 990fb8888e77..bdb87c70e090 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1349,7 +1349,7 @@ let
 
     ocamlformat-lib = callPackage ../development/ocaml-modules/ocamlformat/ocamlformat-lib.nix { };
 
-    ocamlformat-mlx = callPackage ../development/ocaml-modules/ocamlformat-mlx/ocamlformat-mlx.nix { };
+    ocamlformat-mlx = callPackage ../development/ocaml-modules/ocamlformat-mlx { };
 
     ocamlformat-mlx-lib = callPackage ../development/ocaml-modules/ocamlformat-mlx/lib.nix { };