diff --git a/pkgs/development/ocaml-modules/mirage-block-unix/default.nix b/pkgs/development/ocaml-modules/mirage-block-unix/default.nix
new file mode 100644
index 000000000000..a24c4c9e821f
--- /dev/null
+++ b/pkgs/development/ocaml-modules/mirage-block-unix/default.nix
@@ -0,0 +1,29 @@
+{ lib, fetchurl, buildDunePackage, cstruct-lwt, diet, io-page-unix, logs
+, mirage-block, ounit, rresult, uri }:
+
+buildDunePackage rec {
+  pname = "mirage-block-unix";
+  version = "2.12.1";
+
+  useDune2 = true;
+
+  src = fetchurl {
+    url =
+      "https://github.com/mirage/mirage-block-unix/releases/download/v${version}/mirage-block-unix-v${version}.tbz";
+    sha256 = "4fc0ccea3c06c654e149c0f0e1c2a6f19be4e3fe1afd293c6a0dba1b56b3b8c4";
+  };
+
+  minimumOCamlVersion = "4.06";
+
+  propagatedBuildInputs = [ cstruct-lwt logs mirage-block rresult uri ];
+
+  doCheck = true;
+  checkInputs = [ diet io-page-unix ounit ];
+
+  meta = with lib; {
+    description = "MirageOS disk block driver for Unix";
+    homepage = "https://github.com/mirage/mirage-block-unix";
+    license = licenses.isc;
+    maintainers = with maintainers; [ ehmry ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 06ca7b01fae7..9f4603099f8e 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -579,6 +579,8 @@ let
 
     mirage-block-ramdisk = callPackage ../development/ocaml-modules/mirage-block-ramdisk { };
 
+    mirage-block-unix = callPackage ../development/ocaml-modules/mirage-block-unix { };
+
     mirage-bootvar-unix = callPackage ../development/ocaml-modules/mirage-bootvar-unix { };
 
     mirage-channel = callPackage ../development/ocaml-modules/mirage-channel { };