diff --git a/pkgs/development/ocaml-modules/ctypes_stubs_js/default.nix b/pkgs/development/ocaml-modules/ctypes_stubs_js/default.nix
index edb31f1836b..c8913ce9bb0 100644
--- a/pkgs/development/ocaml-modules/ctypes_stubs_js/default.nix
+++ b/pkgs/development/ocaml-modules/ctypes_stubs_js/default.nix
@@ -9,6 +9,7 @@ buildDunePackage rec {
   pname = "ctypes_stubs_js";
   version = "0.1";
 
+  duneVersion = "3";
   minimalOCamlVersion = "4.08";
 
   src = fetchFromGitLab {