diff --git a/dune b/dune
index f5b52af0f..cafbcda20 100644
--- a/dune
+++ b/dune
@@ -45,7 +45,7 @@
    ;; UTILS
    config build_path_prefix_map misc identifiable numbers arg_helper clflags
    profile terminfo ccomp warnings consistbl strongly_connected_components
-   targetint load_path int_replace_polymorphic_compare
+   targetint load_path int_replace_polymorphic_compare binutils
 
    ;; PARSING
    location longident docstrings syntaxerr ast_helper camlinternalMenhirLib
diff --git a/ocamltest/dune b/ocamltest/dune
index 1439d5cb3..f10cab798 100644
--- a/ocamltest/dune
+++ b/ocamltest/dune
@@ -39,10 +39,13 @@
  (modes byte)
  (wrapped false)
  (flags (:standard -nostdlib))
- (libraries ocamlcommon stdlib)
+ (libraries ocamlcommon stdlib
+  (select ocamltest_unix.ml from
+   (unix -> ocamltest_unix_real.ml)
+   (-> ocamltest_unix_dummy.ml)))
  (modules (:standard \ options main))
  (c_flags (-DCAML_INTERNALS -I%{project_root}/runtime)) ; fixme
- (c_names run_unix run_stubs ocamltest_stdlib_stubs))
+ (c_names run_unix run_stubs))
 
 (rule
  (targets empty.ml)