diff --git a/pkgs/development/ocaml-modules/dune-private-libs/default.nix b/pkgs/development/ocaml-modules/dune-private-libs/default.nix
new file mode 100644
index 000000000000..1c3503f11a15
--- /dev/null
+++ b/pkgs/development/ocaml-modules/dune-private-libs/default.nix
@@ -0,0 +1,15 @@
+{ lib, buildDunePackage, dune_2 }:
+
+buildDunePackage rec {
+  pname = "dune-private-libs";
+
+  inherit (dune_2) src version;
+
+  dontAddPrefix = true;
+
+  meta = with lib; {
+    description = "Private libraries of Dune";
+    maintainers = [ maintainers.marsam ];
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 570caccc0b8e..d21aec00195f 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -241,6 +241,8 @@ let
 
     dune_2 = callPackage ../development/tools/ocaml/dune/2.nix { };
 
+    dune-private-libs = callPackage ../development/ocaml-modules/dune-private-libs { buildDunePackage = buildDune2Package; };
+
     earley = callPackage ../development/ocaml-modules/earley { };
 
     earlybird = callPackage ../development/ocaml-modules/earlybird { };