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-rw-r--r--pkgs/development/ocaml-modules/ocf/ppx.nix4
1 files changed, 3 insertions, 1 deletions
diff --git a/pkgs/development/ocaml-modules/ocf/ppx.nix b/pkgs/development/ocaml-modules/ocf/ppx.nix
index 0b1f6998cca..7538bdeca16 100644
--- a/pkgs/development/ocaml-modules/ocf/ppx.nix
+++ b/pkgs/development/ocaml-modules/ocf/ppx.nix
@@ -4,7 +4,9 @@ buildDunePackage {
   pname = "ocf_ppx";
   minimalOCamlVersion = "4.11";
 
-  inherit (ocf) src version useDune2;
+  inherit (ocf) src version;
+
+  duneVersion = "3";
 
   buildInputs = [ ppxlib ocf ];