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-rw-r--r--checker/closure.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/checker/closure.ml b/checker/closure.ml
index 55c91b93ef..38527249ce 100644
--- a/checker/closure.ml
+++ b/checker/closure.ml
@@ -357,7 +357,7 @@ let rec compact_constr (lg, subs as s) c k =
match c with
Rel i ->
if i < k then c,s else
- (try Rel (k + lg - List.index (i-k+1) subs), (lg,subs)
+ (try Rel (k + lg - List.index Int.equal (i-k+1) subs), (lg,subs)
with Not_found -> Rel (k+lg), (lg+1, (i-k+1)::subs))
| (Sort _|Var _|Meta _|Ind _|Const _|Construct _) -> c,s
| Evar(ev,v) ->