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-rw-r--r--tactics/auto.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/tactics/auto.ml b/tactics/auto.ml
index 2b654f563..41b56bd3d 100644
--- a/tactics/auto.ml
+++ b/tactics/auto.ml
@@ -115,6 +115,7 @@ let unify_resolve_gen poly = function
let exact poly (c,clenv) =
Proofview.Goal.enter { enter = begin fun gl ->
let clenv', c = connect_hint_clenv poly c clenv gl in
+ let c = EConstr.of_constr c in
Tacticals.New.tclTHEN
(Proofview.Unsafe.tclEVARUNIVCONTEXT (Evd.evar_universe_context clenv'.evd))
(exact_check c)