diff --git a/pkgs/development/tools/ocaml/js_of_ocaml/compiler-wasm.nix b/pkgs/development/tools/ocaml/js_of_ocaml/compiler-wasm.nix
new file mode 100644
index 0000000000000..70a63198aa64d
--- /dev/null
+++ b/pkgs/development/tools/ocaml/js_of_ocaml/compiler-wasm.nix
@@ -0,0 +1,42 @@
+{
+  lib,
+  buildDunePackage,
+  binaryen,
+  cmdliner,
+  js_of_ocaml,
+  js_of_ocaml-compiler,
+  menhir,
+  menhirLib,
+  ppxlib,
+  sedlex,
+  yojson,
+}:
+
+buildDunePackage {
+  pname = "wasm_of_ocaml-compiler";
+  inherit (js_of_ocaml-compiler) version src;
+  minimalOCamlVersion = "4.12";
+
+  nativeBuildInputs = [
+    binaryen
+    menhir
+  ];
+
+  buildInputs = [
+    cmdliner
+    ppxlib
+  ];
+
+  propagatedBuildInputs = [
+    js_of_ocaml
+    menhirLib
+    sedlex
+    yojson
+  ];
+
+  meta = js_of_ocaml-compiler.meta // {
+    description = "Compiler from OCaml bytecode to WebAssembly";
+    mainProgram = "wasm_of_ocaml";
+    maintainers = [ lib.maintainers.stepbrobd ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 7bebc3af9364c..ac29de7938173 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -2012,6 +2012,8 @@ let
 
     wasm = callPackage ../development/ocaml-modules/wasm { };
 
+    wasm_of_ocaml-compiler = callPackage ../development/tools/ocaml/js_of_ocaml/compiler-wasm.nix { };
+
     wayland = callPackage ../development/ocaml-modules/wayland { };
 
     webbrowser = callPackage ../development/ocaml-modules/webbrowser { };