diff --git a/pkgs/development/ocaml-modules/dns/default.nix b/pkgs/development/ocaml-modules/dns/default.nix
index 09753c14b35..21d9d02da4b 100644
--- a/pkgs/development/ocaml-modules/dns/default.nix
+++ b/pkgs/development/ocaml-modules/dns/default.nix
@@ -6,6 +6,7 @@ buildDunePackage rec {
   pname = "dns";
   version = "4.6.2";
 
+  useDune2 = true;
   minimumOCamlVersion = "4.07";
 
   src = fetchurl {