diff --git a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs
index 5d154cc7b9050..47fcdd390e0ee 100644
--- a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs
@@ -211,6 +211,7 @@ impl<'tcx> BorrowExplanation<'tcx> {
                     // Otherwise, just report the whole type (and use
                     // the intentionally fuzzy phrase "destructor")
                     ty::Closure(..) => ("destructor", "closure".to_owned()),
+                    ty::CoroutineClosure(..) => ("destructor", "async closure".to_owned()),
                     ty::Coroutine(..) => ("destructor", "coroutine".to_owned()),
 
                     _ => ("destructor", format!("type `{}`", local_decl.ty)),
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs
index 825aa37065e15..c76a347af03a2 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs
@@ -486,8 +486,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         if let traits::FulfillmentErrorCode::Select(traits::SelectionError::SignatureMismatch(
             traits::SignatureMismatchData { expected_trait_ref, .. },
         )) = error.code
-            && let ty::Closure(def_id, _) | ty::Coroutine(def_id, ..) =
-                expected_trait_ref.self_ty().kind()
+            && let ty::Closure(def_id, _)
+                | ty::CoroutineClosure(def_id, _)
+                | ty::Coroutine(def_id, ..) = expected_trait_ref.self_ty().kind()
             && span.overlaps(self.tcx.def_span(*def_id))
         {
             true