diff --git a/pkgs/development/ocaml-modules/opam-repository/default.nix b/pkgs/development/ocaml-modules/opam-repository/default.nix
index 1801a9e1c86..1480a7d5915 100644
--- a/pkgs/development/ocaml-modules/opam-repository/default.nix
+++ b/pkgs/development/ocaml-modules/opam-repository/default.nix
@@ -5,6 +5,8 @@ buildDunePackage rec {
 
   minimumOCamlVersion = "4.02";
 
+  useDune2 = true;
+
   inherit (opam-format) src version;
 
   patches = [ ./download-tool.patch ];