diff -uNr ppx_fail-113.33.00/_oasis ppx_fail-113.33.00+4.03/_oasis
--- ppx_fail-113.33.00/_oasis	2016-03-09 16:44:54.000000000 +0100
+++ ppx_fail-113.33.00+4.03/_oasis	2016-03-22 15:13:50.000000000 +0100
@@ -1,8 +1,8 @@
 OASISFormat:      0.4
-OCamlVersion:     >= 4.02.3
+OCamlVersion:     >= 4.03.0
 FindlibVersion:   >= 1.3.2
 Name:             ppx_fail
-Version:          113.33.00
+Version:          113.33.00+4.03
 Synopsis:         Add location to calls to failwiths
 Authors:          Jane Street Group, LLC <opensource@janestreet.com>
 Copyrights:       (C) 2015-2016 Jane Street Group LLC <opensource@janestreet.com>
diff -uNr ppx_fail-113.33.00/opam ppx_fail-113.33.00+4.03/opam
--- ppx_fail-113.33.00/opam	2016-03-18 12:08:01.000000000 +0100
+++ ppx_fail-113.33.00+4.03/opam	2016-03-22 17:51:36.000000000 +0100
@@ -17,4 +17,4 @@
   "ppx_here"
   "ppx_tools"  {>= "0.99.3"}
 ]
-available: [ ocaml-version >= "4.02.3" ]
+available: [ ocaml-version >= "4.03.0" ]
diff -uNr ppx_fail-113.33.00/src/ppx_fail.ml ppx_fail-113.33.00+4.03/src/ppx_fail.ml
--- ppx_fail-113.33.00/src/ppx_fail.ml	2016-03-09 16:44:54.000000000 +0100
+++ ppx_fail-113.33.00+4.03/src/ppx_fail.ml	2016-03-22 15:13:50.000000000 +0100
@@ -12,7 +12,7 @@
     match e.pexp_desc with
     | Pexp_ident { txt = Lident "failwiths"; _ } ->
       let loc = e.pexp_loc in
-      pexp_apply e ~loc [("here", Ppx_here_expander.lift_position ~loc)]
+      pexp_apply e ~loc [(Labelled "here", Ppx_here_expander.lift_position ~loc)]
     | _ -> super#expression e
 end