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-rw-r--r--toplevel/classes.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/toplevel/classes.ml b/toplevel/classes.ml
index 4d23a4181..e034d0674 100644
--- a/toplevel/classes.ml
+++ b/toplevel/classes.ml
@@ -295,7 +295,7 @@ let new_instance ?(abstract=false) ?(global=false) poly ctx (instid, bk, cl) pro
else
(Flags.silently
(fun () ->
- Lemmas.start_proof id kind (Evd.evar_universe_context evm) termtype
+ Lemmas.start_proof id kind (Evd.from_env ~ctx:(Evd.evar_universe_context evm) Environ.empty_env) termtype
(Lemmas.mk_hook
(fun _ -> instance_hook k pri global imps ?hook));
(* spiwack: I don't know what to do with the status here. *)