diff --git a/pkgs/development/ocaml-modules/httpun/lwt-unix.nix b/pkgs/development/ocaml-modules/httpun/lwt-unix.nix
new file mode 100644
index 0000000000000..3e56ca7685320
--- /dev/null
+++ b/pkgs/development/ocaml-modules/httpun/lwt-unix.nix
@@ -0,0 +1,20 @@
+{
+  buildDunePackage,
+  httpun-lwt,
+  gluten-lwt-unix,
+}:
+
+buildDunePackage {
+  pname = "httpun-lwt-unix";
+
+  inherit (httpun-lwt) version src;
+
+  propagatedBuildInputs = [
+    httpun-lwt
+    gluten-lwt-unix
+  ];
+
+  meta = httpun-lwt.meta // {
+    description = "Lwt + Unix support for httpun";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 68aa44eb0c358..09bda1d9cebe5 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -713,6 +713,8 @@ let
 
     httpun-lwt = callPackage ../development/ocaml-modules/httpun/lwt.nix { };
 
+    httpun-lwt-unix = callPackage ../development/ocaml-modules/httpun/lwt-unix.nix { };
+
     httpun-types = callPackage ../development/ocaml-modules/httpun/types.nix { };
 
     httpun-ws = callPackage ../development/ocaml-modules/httpun-ws { };