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-rw-r--r--library/declaremods.ml5
1 files changed, 4 insertions, 1 deletions
diff --git a/library/declaremods.ml b/library/declaremods.ml
index 043484151..651c76ae1 100644
--- a/library/declaremods.ml
+++ b/library/declaremods.ml
@@ -727,7 +727,10 @@ let declare_modtype interp_modast id args mtys (mty,ann) fs =
let arg_entries_r = intern_args interp_modast args in
let params = mk_params_entry arg_entries_r in
let env = Global.env () in
- let entry = params, fst (interp_modast env ModType mty) in
+ let mte, _ = interp_modast env ModType mty in
+ (* We check immediately that mte is well-formed *)
+ let _ = Mod_typing.translate_mse env None inl mte in
+ let entry = params, mte in
let sub_mty_l = build_subtypes interp_modast env mp arg_entries_r mtys in
let sobjs = get_functor_sobjs false env inl entry in
let subst = map_mp (get_module_path (snd entry)) mp empty_delta_resolver in