1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix b/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix
index 009d95992fb74..daed1a7fbffbf 100644
--- a/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix
+++ b/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix
@@ -8,7 +8,7 @@ buildDunePackage rec {
    pname = "ocaml-migrate-parsetree";
    version = "1.8.0";
 
-   useDune2 = lib.versionAtLeast ocaml.version "4.08";
+   duneVersion = if lib.versionAtLeast ocaml.version "4.08" then "3" else "1";
 
    src = fetchFromGitHub {
      owner = "ocaml-ppx";