1 files changed, 2 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/dune-private-libs/default.nix b/nixpkgs/pkgs/development/ocaml-modules/dune-private-libs/default.nix
index 1c3503f11a1..14059070c9a 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/dune-private-libs/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/dune-private-libs/default.nix
@@ -3,6 +3,8 @@
 buildDunePackage rec {
   pname = "dune-private-libs";
 
+  useDune2 = true;
+
   inherit (dune_2) src version;
 
   dontAddPrefix = true;