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-rw-r--r--vernac/himsg.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/vernac/himsg.ml b/vernac/himsg.ml
index ca3fb392f..86dcb6d4d 100644
--- a/vernac/himsg.ml
+++ b/vernac/himsg.ml
@@ -909,6 +909,7 @@ let explain_not_match_error = function
quote (Printer.safe_pr_lconstr_env env Evd.empty t2)
| IncompatibleConstraints cst ->
str " the expected (polymorphic) constraints do not imply " ++
+ let cst = Univ.UContext.constraints (Univ.instantiate_univ_context cst) in
quote (Univ.pr_constraints (Termops.pr_evd_level Evd.empty) cst)
let explain_signature_mismatch l spec why =