1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_traits/src/coroutine_witnesses.rs b/compiler/rustc_traits/src/coroutine_witnesses.rs
index 447e13126cc..c1573ba7641 100644
--- a/compiler/rustc_traits/src/coroutine_witnesses.rs
+++ b/compiler/rustc_traits/src/coroutine_witnesses.rs
@@ -29,9 +29,8 @@ pub(crate) fn coroutine_hidden_types<'tcx>(
                 ty
             }),
     );
-
     ty::EarlyBinder::bind(ty::Binder::bind_with_vars(
-        ty::CoroutineWitnessTypes { types: bound_tys },
+        ty::CoroutineWitnessTypes { types: bound_tys, assumptions: ty::List::empty() },
         tcx.mk_bound_variable_kinds(&vars),
     ))
 }