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-rw-r--r--plugins/ltac/rewrite.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/ltac/rewrite.ml b/plugins/ltac/rewrite.ml
index 2055b25ff4..ea54973fdc 100644
--- a/plugins/ltac/rewrite.ml
+++ b/plugins/ltac/rewrite.ml
@@ -449,7 +449,7 @@ let evd_convertible env evd x y =
unsolvable constraints remain, so we check that this unification
does not introduce any new problem. *)
let _, pbs = Evd.extract_all_conv_pbs evd in
- let evd' = Evarconv.the_conv_x env x y evd in
+ let evd' = Evarconv.unify_delay env evd x y in
let _, pbs' = Evd.extract_all_conv_pbs evd' in
if evd' == evd || problem_inclusion pbs' pbs then Some evd'
else None