diff --git a/pkgs/development/tools/ocaml/ocp-build/default.nix b/pkgs/development/tools/ocaml/ocp-build/default.nix
new file mode 100644
index 000000000000..4970d641643f
--- /dev/null
+++ b/pkgs/development/tools/ocaml/ocp-build/default.nix
@@ -0,0 +1,40 @@
+{ stdenv, fetchurl, ocaml, findlib, ncurses }:
+
+stdenv.mkDerivation {
+
+  name = "ocp-build-1.99.8-beta";
+
+  src = fetchurl {
+    url = "https://github.com/OCamlPro/ocp-build/archive/ocp-build.1.99.8-beta.tar.gz";
+    sha256 = "06qh8v7k5m52xbivas08lblspsnvdl0vd7ghfj6wvpnfl8qvqabn";
+  };
+
+  buildInputs = [ ocaml findlib ncurses ];
+
+  patches = [ ./fix-for-no-term.patch ];
+
+  # In the Nix sandbox, the TERM variable is unset and stty does not
+  # work. In such a case, ocp-build crashes due to a bug. The
+  # ./fix-for-no-term.patch fixes this bug in the source code and hence
+  # also in the final installed version of ocp-build. However, it does not
+  # fix the bug in the precompiled bootstrap version of ocp-build that is
+  # used during the compilation process. In order to bypass the bug until
+  # it's also fixed upstream, we simply set TERM to some valid entry in the
+  # terminfo database during the bootstrap.
+  TERM = "xterm";
+
+  meta = with stdenv.lib; {
+    homepage = "http://typerex.ocamlpro.com/ocp-build.html";
+    description = "A build tool for OCaml";
+    longDescription = ''
+      ocp-build is a build system for OCaml application, based on simple
+      descriptions of packages. ocp-build combines the descriptions of
+      packages, and optimize the parallel compilation of files depending on
+      the number of cores and the automatically-infered dependencies
+      between source files.
+    '';
+    license = licenses.gpl3;
+    platforms = ocaml.meta.platforms;
+    maintainers = [ maintainers.jirkamarsik ];
+  };
+}
diff --git a/pkgs/development/tools/ocaml/ocp-build/fix-for-no-term.patch b/pkgs/development/tools/ocaml/ocp-build/fix-for-no-term.patch
new file mode 100644
index 000000000000..8ce83d095fb3
--- /dev/null
+++ b/pkgs/development/tools/ocaml/ocp-build/fix-for-no-term.patch
@@ -0,0 +1,11 @@
+--- ocp-build-ocp-build.1.99.8-beta/src/ocp-build/buildTerm.ml	2014-10-27 13:54:37.532023502 +0100
++++ ocp-build-ocp-build.1.99.8-beta/src/ocp-build/buildTerm.ml.new	2014-10-27 13:54:43.397099033 +0100
+@@ -49,7 +49,7 @@
+           | _ -> failwith "stty"
+         end
+       | _ -> raise Not_found
+-    with Unix.Unix_error _ | End_of_file | Failure _ ->
++    with Unix.Unix_error _ | End_of_file | Failure _ | Not_found ->
+       try
+         (* shell envvar *)
+         int_of_string (Sys.getenv "COLUMNS")
diff --git a/pkgs/development/tools/ocaml/ocp-indent/default.nix b/pkgs/development/tools/ocaml/ocp-indent/default.nix
new file mode 100644
index 000000000000..d50e003f8474
--- /dev/null
+++ b/pkgs/development/tools/ocaml/ocp-indent/default.nix
@@ -0,0 +1,41 @@
+{ stdenv, fetchurl, ocaml, findlib, ocpBuild, opam, cmdliner }:
+
+let inherit (stdenv.lib) getVersion versionAtLeast; in
+
+assert versionAtLeast (getVersion ocaml) "3.12.1";
+assert versionAtLeast (getVersion ocpBuild) "1.99.3-beta";
+
+stdenv.mkDerivation {
+
+  name = "ocp-indent-1.4.2b";
+
+  src = fetchurl {
+    url = "https://github.com/OCamlPro/ocp-indent/archive/1.4.2b.tar.gz";
+    sha256 = "1p0n2zcl5kf543x2xlqrz1aa51f0dqal8l392sa41j6wx82j0gpb";
+  };
+
+  buildInputs = [ ocaml findlib ocpBuild opam cmdliner ];
+
+  createFindlibDestdir = true;
+
+  # The supplied installer uses opam-installer which breaks when run
+  # normally since it tries to `mkdir $HOME`. However, we can use
+  # `opam-installer --script` to get the shell script that performs only
+  # the installation and just run that. Furthermore, we do the same that is
+  # done by pkgs/development/ocaml-modules/react and rename the paths meant
+  # for opam-installer so that they are in line with the other OCaml
+  # libraries in Nixpkgs.
+  installPhase = ''
+    opam-installer --script --prefix=$out ocp-indent.install \
+    | sed s!lib/ocp-indent!lib/ocaml/${getVersion ocaml}/site-lib/ocp-indent! \
+    | sh
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = "http://typerex.ocamlpro.com/ocp-indent.html";
+    description = "A customizable tool to indent OCaml code";
+    license = licenses.gpl3;
+    platforms = ocaml.meta.platforms;
+    maintainers = [ maintainers.jirkamarsik ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 090929eba23c..be2631831d10 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3641,6 +3641,10 @@ let
 
     ocaml_text = callPackage ../development/ocaml-modules/ocaml-text { };
 
+    ocpBuild = callPackage ../development/tools/ocaml/ocp-build { };
+
+    ocpIndent = callPackage ../development/tools/ocaml/ocp-indent { };
+
     ocsigen_server = callPackage ../development/ocaml-modules/ocsigen-server { };
 
     ounit = callPackage ../development/ocaml-modules/ounit { };