1 files changed, 5 insertions, 5 deletions
diff --git a/pkgs/development/ocaml-modules/ppx_derivers/default.nix b/pkgs/development/ocaml-modules/ppx_derivers/default.nix
index 84dda38846fe5..49217781b8acf 100644
--- a/pkgs/development/ocaml-modules/ppx_derivers/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_derivers/default.nix
@@ -1,12 +1,10 @@
 { lib, fetchFromGitHub, buildDunePackage, ocaml }:
 
-buildDunePackage rec {
+buildDunePackage (rec {
   pname = "ppx_derivers";
   version = "1.2.1";
 
-  useDune2 = lib.versionAtLeast ocaml.version "4.08";
-
-  minimumOCamlVersion = "4.02";
+  minimalOCamlVersion = "4.02";
 
   src = fetchFromGitHub {
     owner = "diml";
@@ -21,4 +19,6 @@ buildDunePackage rec {
     maintainers = [ lib.maintainers.vbgl ];
     inherit (src.meta) homepage;
   };
-}
+} // lib.optionalAttrs (!lib.versionAtLeast ocaml.version "4.08") {
+  duneVersion = "1";
+})