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-rw-r--r--vernac/classes.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/vernac/classes.ml b/vernac/classes.ml
index c2e9a5ab4..6914f899b 100644
--- a/vernac/classes.ml
+++ b/vernac/classes.ml
@@ -141,7 +141,7 @@ let new_instance ?(abstract=false) ?(global=false) ?(refine= !refine_instance)
Implicit_quantifiers.implicit_application Id.Set.empty ~allow_partial:false
(fun avoid (clname, _) ->
match clname with
- | Some (cl, b) ->
+ | Some cl ->
let t = CAst.make @@ CHole (None, Misctypes.IntroAnonymous, None) in
t, avoid
| None -> failwith ("new instance: under-applied typeclass"))