diff --git a/pkgs/development/ocaml-modules/mlx/ocamlmerlin-mlx.nix b/pkgs/development/ocaml-modules/mlx/ocamlmerlin-mlx.nix
new file mode 100644
index 0000000000000..18e1d5adee7e9
--- /dev/null
+++ b/pkgs/development/ocaml-modules/mlx/ocamlmerlin-mlx.nix
@@ -0,0 +1,38 @@
+{
+  lib,
+  mlx,
+  buildDunePackage,
+  ppxlib,
+  merlin-lib,
+  cppo,
+  csexp,
+  menhir,
+  odoc,
+}:
+buildDunePackage {
+  pname = "ocamlmerlin-mlx";
+
+  inherit (mlx) version src;
+
+  minimalOCamlVersion = "4.14";
+
+  buildInputs = [
+    ppxlib
+    merlin-lib
+    csexp
+    menhir
+    odoc
+  ];
+
+  nativeBuildInputs = [
+    cppo
+  ];
+
+  meta = {
+    description = "Merlin support for MLX OCaml dialect";
+    homepage = "https://github.com/ocaml-mlx/mlx";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.Denommus ];
+    mainProgram = "ocamlmerlin-mlx";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 84d0d4032c012..093a0638c8c7d 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1371,6 +1371,8 @@ let
 
     ocamline = callPackage ../development/ocaml-modules/ocamline { };
 
+    ocamlmerlin-mlx = callPackage ../development/ocaml-modules/mlx/ocamlmerlin-mlx.nix { };
+
     ocamlmod = callPackage ../development/tools/ocaml/ocamlmod { };
 
     ocamlnet = callPackage ../development/ocaml-modules/ocamlnet { };