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-rw-r--r--pretyping/typeclasses.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/pretyping/typeclasses.ml b/pretyping/typeclasses.ml
index 2c675b9eae..4ae72a5151 100644
--- a/pretyping/typeclasses.ml
+++ b/pretyping/typeclasses.ml
@@ -501,7 +501,7 @@ let is_resolvable evi =
Option.is_empty (Store.get evi.evar_extra resolvable)
let mark_resolvability_undef b evi =
- if is_resolvable evi = b then evi
+ if is_resolvable evi == (b : bool) then evi
else
let t = set_resolvable evi.evar_extra b in
{ evi with evar_extra = t }