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-rw-r--r--pretyping/recordops.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/pretyping/recordops.ml b/pretyping/recordops.ml
index 7fde7b7ac..af4865401 100644
--- a/pretyping/recordops.ml
+++ b/pretyping/recordops.ml
@@ -299,7 +299,7 @@ let check_and_decompose_canonical_structure ref =
| Construct ((indsp,1),u) -> indsp
| _ -> error_not_structure ref in
let s = try lookup_structure indsp with Not_found -> error_not_structure ref in
- let ntrue_projs = List.length (List.filter (fun (_, x) -> x) s.s_PROJKIND) in
+ let ntrue_projs = List.count snd s.s_PROJKIND in
if s.s_EXPECTEDPARAM + ntrue_projs > Array.length args then
error_not_structure ref;
(sp,indsp)