diff --git a/pkgs/development/ocaml-modules/metrics/default.nix b/pkgs/development/ocaml-modules/metrics/default.nix
new file mode 100644
index 000000000000..893b667f8364
--- /dev/null
+++ b/pkgs/development/ocaml-modules/metrics/default.nix
@@ -0,0 +1,27 @@
+{ lib, fetchurl, buildDunePackage, alcotest, fmt }:
+
+buildDunePackage rec {
+  pname = "metrics";
+  version = "0.1.0";
+
+  minimumOCamlVersion = "4.04";
+
+  src = fetchurl {
+    url = "https://github.com/mirage/metrics/releases/download/${version}/metrics-${version}.tbz";
+    sha256 = "0jy88anrx3rh19046rrbrjmx922zvz3wlqkk8asilqv9pbvpnp1a";
+  };
+
+  propagatedBuildInputs = [ fmt ];
+
+  checkInputs = lib.optional doCheck alcotest;
+
+  doCheck = true;
+
+  meta = {
+    description = "Metrics infrastructure for OCaml";
+    homepage = "https://github.com/mirage/metrics";
+    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 7e5aa6598c17..529bd3d7cee1 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -464,6 +464,8 @@ let
 
     merlin-extend = callPackage ../development/ocaml-modules/merlin-extend { };
 
+    metrics = callPackage ../development/ocaml-modules/metrics { };
+
     mezzo = callPackage ../development/compilers/mezzo { };
 
     minisat = callPackage ../development/ocaml-modules/minisat { };