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-rw-r--r--pretyping/classops.ml4
1 files changed, 2 insertions, 2 deletions
diff --git a/pretyping/classops.ml b/pretyping/classops.ml
index d3d4201f57..4f265e76c9 100644
--- a/pretyping/classops.ml
+++ b/pretyping/classops.ml
@@ -6,7 +6,7 @@
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
-open Errors
+open CErrors
open Util
open Pp
open Flags
@@ -297,7 +297,7 @@ let lookup_path_to_sort_from env sigma s =
let get_coercion_constructor env coe =
let c, _ =
- Reductionops.whd_betadeltaiota_stack env Evd.empty coe.coe_value
+ Reductionops.whd_all_stack env Evd.empty coe.coe_value
in
match kind_of_term c with
| Construct (cstr,u) ->