diff --git a/pkgs/development/ocaml-modules/mtime/default.nix b/pkgs/development/ocaml-modules/mtime/default.nix
index f4e3586b43c..f86909cc10b 100644
--- a/pkgs/development/ocaml-modules/mtime/default.nix
+++ b/pkgs/development/ocaml-modules/mtime/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, fetchurl, ocaml, findlib, ocamlbuild, topkg, js_of_ocaml
-, jsooSupport ? true
+, jsooSupport ? lib.versionAtLeast ocaml.version "4.03"
 }:
 
 with lib;