diff --git a/pkgs/development/ocaml-modules/mirage-clock/unix.nix b/pkgs/development/ocaml-modules/mirage-clock/unix.nix
new file mode 100644
index 00000000000..5918d89221f
--- /dev/null
+++ b/pkgs/development/ocaml-modules/mirage-clock/unix.nix
@@ -0,0 +1,13 @@
+{ buildDunePackage, mirage-clock }:
+
+buildDunePackage {
+  pname = "mirage-clock-unix";
+
+  inherit (mirage-clock) version src;
+
+  propagatedBuildInputs = [ mirage-clock ];
+
+  meta = mirage-clock.meta // {
+    description = "Unix-based implementation for the MirageOS Clock interface";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 4c2c6f23d1e..81ec367f76e 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -538,6 +538,8 @@ let
 
     mirage-clock = callPackage ../development/ocaml-modules/mirage-clock { };
 
+    mirage-clock-unix = callPackage ../development/ocaml-modules/mirage-clock/unix.nix { };
+
     mirage-crypto = callPackage ../development/ocaml-modules/mirage-crypto { };
 
     mirage-crypto-pk = callPackage ../development/ocaml-modules/mirage-crypto/pk.nix { };