diff --git a/pkgs/development/ocaml-modules/comparelib/default.nix b/pkgs/development/ocaml-modules/comparelib/default.nix
new file mode 100644
index 000000000000..950012158142
--- /dev/null
+++ b/pkgs/development/ocaml-modules/comparelib/default.nix
@@ -0,0 +1,22 @@
+{stdenv, buildOcaml, fetchurl, type_conv}:
+
+buildOcaml rec {
+  name = "comparelib";
+  version = "109.60.00";
+
+  minimumSupportedOcamlVersion = "4.00";
+
+  src = fetchurl {
+    url = "https://github.com/janestreet/comparelib/archive/${version}.tar.gz";
+    sha256 = "1075fb05e0d1e290f71ad0f6163f32b2cb4cebdc77568491c7eb38ba91f5db7e";
+  };
+
+  propagatedBuildInputs = [ type_conv ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/janestreet/comparelib;
+    description = "Syntax extension for deriving \"compare\" functions automatically";
+    license = licenses.asl20;
+    maintainers = [ maintainers.ericbmerritt ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 861a95b2f018..058a5a49c57d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4220,6 +4220,8 @@ let
 
     ocaml_batteries = callPackage ../development/ocaml-modules/batteries { };
 
+    comparelib = callPackage ../development/ocaml-modules/comparelib { };
+
     ocaml_cryptgps = callPackage ../development/ocaml-modules/cryptgps { };
 
     ocaml_data_notation = callPackage ../development/ocaml-modules/odn { };