diff --git a/pkgs/development/ocaml-modules/config/default.nix b/pkgs/development/ocaml-modules/config/default.nix
new file mode 100644
index 000000000000..43ad500602ee
--- /dev/null
+++ b/pkgs/development/ocaml-modules/config/default.nix
@@ -0,0 +1,27 @@
+{ lib
+, buildDunePackage
+, fetchurl
+, ppxlib
+, spices
+}:
+
+buildDunePackage rec {
+  pname = "config";
+  version = "0.0.3";
+
+  src = fetchurl {
+    url = "https://github.com/ocaml-sys/config.ml/releases/download/${version}/config-${version}.tbz";
+    hash = "sha256-bcRCfLX2ro8vnQTJiX2aYGJC+eD26vkPynMYg817YFM=";
+  };
+
+  propagatedBuildInputs = [
+    ppxlib
+    spices
+  ];
+
+  meta = {
+    description = "Ergonomic, lightweight conditional compilation through attributes";
+    homepage = "https://github.com/ocaml-sys/config.ml";
+    license = lib.licenses.mit;
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 4bef08626b29..9f588d175cd5 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -245,6 +245,8 @@ let
 
     conduit-mirage = callPackage ../development/ocaml-modules/conduit/mirage.nix { };
 
+    config = callPackage ../development/ocaml-modules/config { };
+
     config-file = callPackage ../development/ocaml-modules/config-file { };
 
     containers = callPackage ../development/ocaml-modules/containers { };