1 files changed, 3 insertions, 3 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/ppx_gen_rec/default.nix b/nixpkgs/pkgs/development/ocaml-modules/ppx_gen_rec/default.nix
index 32865bed6316..87ccd85a07df 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/ppx_gen_rec/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/ppx_gen_rec/default.nix
@@ -1,10 +1,10 @@
-{ stdenv, fetchurl, buildDunePackage, ocaml-migrate-parsetree }:
+{ lib, fetchurl, buildDunePackage, ocaml-migrate-parsetree }:
 
 buildDunePackage rec {
   pname = "ppx_gen_rec";
   version = "1.1.0";
 
-  minimumOCamlVersion = "4.01";
+  useDune2 = true;
 
   src = fetchurl {
     url = "https://github.com/flowtype/ocaml-${pname}/releases/download/v${version}/${pname}-v${version}.tbz";
@@ -13,7 +13,7 @@ buildDunePackage rec {
 
   buildInputs = [ ocaml-migrate-parsetree ];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "https://github.com/flowtype/ocaml-ppx_gen_rec";
     description = "ocaml preprocessor that generates a recursive module";
     license = licenses.mit;