diff --git a/pkgs/development/ocaml-modules/webmachine/default.nix b/pkgs/development/ocaml-modules/webmachine/default.nix
index 3bf163607cd2..afb26cfb354b 100644
--- a/pkgs/development/ocaml-modules/webmachine/default.nix
+++ b/pkgs/development/ocaml-modules/webmachine/default.nix
@@ -6,6 +6,7 @@
 buildDunePackage rec {
   pname = "webmachine";
   version = "0.6.2";
+  useDune2 = true;
 
   minimumOCamlVersion = "4.04";