diff --git a/pkgs/development/ocaml-modules/mirage-block/default.nix b/pkgs/development/ocaml-modules/mirage-block/default.nix
new file mode 100644
index 00000000000..fc9a6b6f06b
--- /dev/null
+++ b/pkgs/development/ocaml-modules/mirage-block/default.nix
@@ -0,0 +1,24 @@
+{ lib, fetchurl, buildDunePackage
+, cstruct, lwt, mirage-device
+}:
+
+buildDunePackage rec {
+  pname = "mirage-block";
+  version = "2.0.1";
+
+  useDune2 = true;
+
+  src = fetchurl {
+    url = "https://github.com/mirage/mirage-block/releases/download/v${version}/mirage-block-v${version}.tbz";
+    sha256 = "1wp8wmixaz9i2sbvq6nkx903lbnpdgb2w404pz1wk8kcg9p3ilcc";
+  };
+
+  propagatedBuildInputs = [ cstruct lwt mirage-device ];
+
+  meta = {
+    description = "Block signatures and implementations for MirageOS";
+    homepage = "https://github.com/mirage/mirage-block";
+    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 9b0dff7c70e..55658e70af9 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -539,6 +539,8 @@ let
 
     minisat = callPackage ../development/ocaml-modules/minisat { };
 
+    mirage-block = callPackage ../development/ocaml-modules/mirage-block { };
+
     mirage-bootvar-unix = callPackage ../development/ocaml-modules/mirage-bootvar-unix { };
 
     mirage-clock = callPackage ../development/ocaml-modules/mirage-clock { };