Allow proving force ∘ thunk = id extensionally

1 files changed, 1 insertions, 1 deletions

diff --git a/src/Experiments/NewPipeline/AbstractInterpretation.v b/src/Experiments/NewPipeline/AbstractInterpretation.v
index d018d63bb..b6c6c4004 100644
--- a/src/Experiments/NewPipeline/AbstractInterpretation.v
+++ b/src/Experiments/NewPipeline/AbstractInterpretation.v
@@ -695,7 +695,7 @@ Module Compilers.
            end
       with thunk_abstract_domain {t} : abstract_domain t -> lazy_abstract_domain t
            := match t with
-              | type.base t => fun st 'tt => st
+              | type.base t => fun st (_ : unit) => st
               | type.arrow s d
                 => fun f x => @thunk_abstract_domain d (f (@force_abstract_domain s x))
               end.