diff --git a/pkgs/development/ocaml-modules/multicore-bench/default.nix b/pkgs/development/ocaml-modules/multicore-bench/default.nix
new file mode 100644
index 000000000000..5e1d2275e5b6
--- /dev/null
+++ b/pkgs/development/ocaml-modules/multicore-bench/default.nix
@@ -0,0 +1,22 @@
+{ lib, buildDunePackage, fetchurl
+, domain-local-await, mtime, multicore-magic, yojson
+}:
+
+buildDunePackage rec {
+  pname = "multicore-bench";
+  version = "0.1.4";
+
+  src = fetchurl {
+    url = "https://github.com/ocaml-multicore/multicore-bench/releases/download/${version}/multicore-bench-${version}.tbz";
+    hash = "sha256-iCx5QvhYo/e53cW23Sza2as4aez4HeESVvLPF1DW85A=";
+  };
+
+  propagatedBuildInputs = [ domain-local-await mtime multicore-magic yojson ];
+
+  meta = {
+    description = "Framework for writing multicore benchmark executables to run on current-bench";
+    homepage = "https://github.com/ocaml-multicore/multicore-bench";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index d7509a7efa9f..c487541fa2e8 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1201,6 +1201,8 @@ let
 
     mtime =  callPackage ../development/ocaml-modules/mtime { };
 
+    multicore-bench =  callPackage ../development/ocaml-modules/multicore-bench { };
+
     multicore-magic =  callPackage ../development/ocaml-modules/multicore-magic { };
 
     multipart-form-data =  callPackage ../development/ocaml-modules/multipart-form-data { };