diff --git a/pkgs/development/ocaml-modules/core/default.nix b/pkgs/development/ocaml-modules/core/default.nix
new file mode 100644
index 000000000000..96fd80087d66
--- /dev/null
+++ b/pkgs/development/ocaml-modules/core/default.nix
@@ -0,0 +1,30 @@
+{stdenv, buildOcaml, fetchurl, type_conv,
+ core_kernel, bin_prot, comparelib, custom_printf, enumerate,
+ fieldslib, herelib, pa_bench, pa_test, pa_ounit,
+ pipebang, sexplib, typerep, variantslib}:
+
+buildOcaml rec {
+  name = "core";
+  version = "112.24.01";
+
+  minimumSupportedOcamlVersion = "4.02";
+
+  src = fetchurl {
+    url = "https://github.com/janestreet/core/archive/${version}.tar.gz";
+    sha256 = "be5d53ebd4fd04ef23ebf9b3b2840c7aeced6bc4cc6cd3f5e89f71c9949000f4";
+  };
+
+  hasSharedObjects = true;
+
+  buildInputs = [ pa_bench pa_test pa_ounit ];
+  propagatedBuildInputs = [ type_conv core_kernel bin_prot comparelib
+                            custom_printf enumerate fieldslib herelib
+                            pipebang sexplib typerep variantslib ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/janestreet/core;
+    description = "Jane Street Capital's standard library overlay";
+    license = licenses.asl20;
+    maintainers = [ maintainers.ericbmerritt ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 699ea09806d0..deb18155da4b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4228,6 +4228,8 @@ let
 
     core_kernel = callPackage ../development/ocaml-modules/core_kernel { };
 
+    core = callPackage ../development/ocaml-modules/core { };
+
     ocaml_cryptgps = callPackage ../development/ocaml-modules/cryptgps { };
 
     ocaml_data_notation = callPackage ../development/ocaml-modules/odn { };