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-rw-r--r--pretyping/termops.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/pretyping/termops.ml b/pretyping/termops.ml
index 908010428f..2e2389f091 100644
--- a/pretyping/termops.ml
+++ b/pretyping/termops.ml
@@ -555,7 +555,7 @@ let free_rels m =
let collect_metas c =
let rec collrec acc c =
match kind_of_term c with
- | Meta mv -> List.add_set mv acc
+ | Meta mv -> List.add_set Int.equal mv acc
| _ -> fold_constr collrec acc c
in
List.rev (collrec [] c)