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-rw-r--r--kernel/subtyping.ml6
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/subtyping.ml b/kernel/subtyping.ml
index 3f153ac244..a9403a5e34 100644
--- a/kernel/subtyping.ml
+++ b/kernel/subtyping.ml
@@ -306,11 +306,7 @@ let rec check_modules cst env msid1 l msb1 msb2 =
and check_signatures cst env (msid1,sig1) (msid2,sig2') =
let mp1 = MPself msid1 in
let env = add_signature mp1 sig1 env in
- let sig2 = try
- subst_signature_msid msid2 mp1 sig2'
- with
- | Circularity l ->
- error_circularity_in_subtyping l (string_of_msid msid1) (string_of_msid msid2) in
+ let sig2 = subst_signature_msid msid2 mp1 sig2' in
let map1 = make_label_map mp1 sig1 in
let check_one_body cst (l,spec2) =
let info1 =