diff --git a/pkgs/development/ocaml-modules/tyxml/default.nix b/pkgs/development/ocaml-modules/tyxml/default.nix
index 5d5e7dedd23..bf0e06507c9 100644
--- a/pkgs/development/ocaml-modules/tyxml/default.nix
+++ b/pkgs/development/ocaml-modules/tyxml/default.nix
@@ -4,6 +4,8 @@ buildDunePackage rec {
   pname = "tyxml";
   version = "4.4.0";
 
+  useDune2 = true;
+
   src = fetchurl {
     url = "https://github.com/ocsigen/tyxml/releases/download/${version}/tyxml-${version}.tbz";
     sha256 = "0c150h2f4c4id73ickkdqkir3jya66m6c7f5jxlp4caw9bfr8qsi";