diff --git a/pkgs/development/tools/ocaml/jbuilder/default.nix b/pkgs/development/tools/ocaml/jbuilder/default.nix
new file mode 100644
index 000000000000..9d6485841fae
--- /dev/null
+++ b/pkgs/development/tools/ocaml/jbuilder/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, fetchzip, ocaml, opam }:
+
+stdenv.mkDerivation {
+  name = "jbuilder-1.0+beta2";
+  src = fetchzip {
+    url = http://github.com/janestreet/jbuilder/archive/1.0+beta2.tar.gz;
+    sha256 = "0xbq6p0n4a740l3jvq4a0a58mwfcal0q37vi8ix053f3jiqki6ng";
+  };
+
+  buildInputs = [ ocaml ];
+
+  installPhase = "${opam}/bin/opam-installer -i --prefix=$out --libdir=$OCAMLFIND_DESTDIR";
+
+  preFixup = "rm -rf $out/jbuilder";
+
+  meta = {
+    homepage = https://github.com/janestreet/jbuilder;
+    description = "Fast, portable and opinionated build system";
+    maintainers = [ stdenv.lib.maintainers.vbgl ];
+    license = stdenv.lib.licenses.asl20;
+    inherit (ocaml.meta) platforms;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8044b1a39966..1de35f861f8c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -938,6 +938,10 @@ with pkgs;
 
   interlock = callPackage ../servers/interlock {};
 
+  jbuilder = callPackage ../development/tools/ocaml/jbuilder {
+    inherit (ocaml-ng.ocamlPackages_4_03) ocaml;
+  };
+
   kapacitor = callPackage ../servers/monitoring/kapacitor { };
 
   languagetool = callPackage ../tools/text/languagetool {  };