diff --git a/pkgs/development/ocaml-modules/lwt/default.nix b/pkgs/development/ocaml-modules/lwt/default.nix
index 0c81775f236..0c73ff6521f 100644
--- a/pkgs/development/ocaml-modules/lwt/default.nix
+++ b/pkgs/development/ocaml-modules/lwt/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchzip, which, cryptopp, ocaml, findlib, ocaml_react, ocaml_ssl, libev, pkgconfig, ncurses, ocaml_oasis, ocaml_text, glib, camlp4}:
+{ stdenv, fetchzip, which, cryptopp, ocaml, findlib, ocaml_react, ocaml_ssl, libev, pkgconfig, ncurses, ocaml_oasis, ocaml_text, glib, camlp4, ppx_tools }:
 
 let
   version = "2.4.6";
@@ -16,11 +16,12 @@ stdenv.mkDerivation {
     sha256 = "0idci0zadpb8hmblszsrvg6yf36w5a9y6rsdwjc3jww71dgrw5d9";
   };
 
-  buildInputs = [ocaml_oasis pkgconfig which cryptopp ocaml findlib glib ncurses camlp4];
+  buildInputs = [ ocaml_oasis pkgconfig which cryptopp ocaml findlib glib ncurses camlp4 ppx_tools ];
 
   propagatedBuildInputs = [ ocaml_react ocaml_ssl ocaml_text libev ];
 
-  configureFlags = [ "--enable-react" "--enable-glib" "--enable-ssl" "--enable-text" "--disable-ppx" ]
+  configureFlags = [ "--enable-react" "--enable-glib" "--enable-ssl" "--enable-text" ]
+  ++ [ (if versionAtLeast ocaml_version "4.02" then "--enable-ppx" else "--disable-ppx") ]
   ++ optional (versionAtLeast ocaml_version "4.0" && ! versionAtLeast ocaml_version "4.02") "--enable-toplevel";
 
   createFindlibDestdir = true;
diff --git a/pkgs/development/ocaml-modules/ppx_tools/default.nix b/pkgs/development/ocaml-modules/ppx_tools/default.nix
new file mode 100644
index 00000000000..4e99dcd1af4
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ppx_tools/default.nix
@@ -0,0 +1,21 @@
+{ stdenv, fetchzip, ocaml, findlib }:
+
+stdenv.mkDerivation {
+  name = "ocaml-ppx_tools-0.99.2";
+  src = fetchzip {
+    url = https://github.com/alainfrisch/ppx_tools/archive/ppx_tools_0.99.2.tar.gz;
+    sha256 = "1m09r2sjcb37i4dyhpbk9n2wxkcvpib6bvairsird91fm9w0vqw7";
+  };
+
+  buildInputs = [ ocaml findlib ];
+
+  createFindlibDestdir = true;
+
+  meta = with stdenv.lib; {
+    description = "Tools for authors of ppx rewriters";
+    homepage = http://www.lexifi.com/ppx_tools;
+    license = licenses.mit;
+    platforms = ocaml.meta.platforms;
+    maintainers = with maintainers; [ vbgl ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ed176ef4de8..72e6f9ca726 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4616,6 +4616,11 @@ let
 
     pprint = callPackage ../development/ocaml-modules/pprint { };
 
+    ppx_tools =
+      if lib.versionAtLeast ocaml_version "4.02"
+      then callPackage ../development/ocaml-modules/ppx_tools {}
+      else null;
+
     pycaml = callPackage ../development/ocaml-modules/pycaml { };
 
     qcheck = callPackage ../development/ocaml-modules/qcheck {