diff --git a/pkgs/development/tools/ocaml/js_of_ocaml/default.nix b/pkgs/development/tools/ocaml/js_of_ocaml/default.nix
deleted file mode 100644
index 7f6426c9610d..000000000000
--- a/pkgs/development/tools/ocaml/js_of_ocaml/default.nix
+++ /dev/null
@@ -1,40 +0,0 @@
-{ stdenv, fetchurl, ocaml, findlib, lwt, menhir, ocsigen_deriving, ppx_deriving, camlp4, ocamlbuild
-, cmdliner, tyxml, reactivedata, cppo, which, base64, uchar, yojson
-}:
-
-let version = if stdenv.lib.versionAtLeast ocaml.version "4.02"
-  then "2.8.4" else "2.7";
-in
-
-stdenv.mkDerivation {
-  pname = "js_of_ocaml";
-  inherit version;
-  src = fetchurl {
-    url = "https://github.com/ocsigen/js_of_ocaml/archive/${version}.tar.gz";
-    sha256 = {
-      "2.7" = "1dali1akyd4zmkwav0d957ynxq2jj6cc94r4xiaql7ca89ajz4jj";
-      "2.8.4" = "098ph50s9kqw6rc3qjn39zv9b5swdf4qr44afwqfkkjgjs5d7vbl";
-    }.${version};
-  };
-
-  buildInputs = [ ocaml findlib menhir ocsigen_deriving ocamlbuild
-                 cmdliner reactivedata cppo which base64 ]
-  ++ stdenv.lib.optionals (stdenv.lib.versionAtLeast ocaml.version "4.02") [ yojson tyxml ];
-  propagatedBuildInputs = [ lwt camlp4 ppx_deriving ]
-  ++ stdenv.lib.optional (version == "2.8.4") uchar;
-
-  patches = [ ./Makefile.conf.diff ];
-
-  createFindlibDestdir = true;
-
-  meta = with stdenv.lib; {
-    homepage = "http://ocsigen.org/js_of_ocaml/";
-    description = "Compiler of OCaml bytecode to Javascript. It makes it possible to run Ocaml programs in a Web browser";
-    license = licenses.lgpl2;
-    platforms = ocaml.meta.platforms or [];
-    maintainers = [
-      maintainers.gal_bolle
-    ];
-    broken = versionAtLeast ocaml.version "4.05";
-  };
-}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 602e131ad9e6..130bd3449827 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -401,15 +401,7 @@ let
 
     jingoo = callPackage ../development/ocaml-modules/jingoo { };
 
-    js_of_ocaml =
-    if lib.versionOlder "4.02" ocaml.version
-    then callPackage ../development/tools/ocaml/js_of_ocaml/3.0.nix { }
-    else js_of_ocaml_2;
-
-    js_of_ocaml_2 = callPackage ../development/tools/ocaml/js_of_ocaml {
-      base64 = base64_2;
-      lwt = lwt2;
-    };
+    js_of_ocaml = callPackage ../development/tools/ocaml/js_of_ocaml/3.0.nix { };
 
     js_of_ocaml-camlp4 = callPackage ../development/tools/ocaml/js_of_ocaml/camlp4.nix {};