diff --git a/clippy_lints/src/future_not_send.rs b/clippy_lints/src/future_not_send.rs
index ae28015b4c9..7eeb6a75ea7 100644
--- a/clippy_lints/src/future_not_send.rs
+++ b/clippy_lints/src/future_not_send.rs
@@ -91,7 +91,7 @@ fn check_fn(
                             cx.tcx.infer_ctxt().enter(|infcx| {
                                 for FulfillmentError { obligation, .. } in send_errors {
                                     infcx.maybe_note_obligation_cause_for_async_await(db, &obligation);
-                                    if let Trait(trait_pred, _) = obligation.predicate.ignore_qualifiers().skip_binder().kind() {
+                                    if let Trait(trait_pred, _) = obligation.predicate.ignore_quantifiers().skip_binder().kind() {
                                         db.note(&format!(
                                             "`{}` doesn't implement `{}`",
                                             trait_pred.self_ty(),
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
index c3cdaeedd19..a450d5f16f8 100644
--- a/clippy_lints/src/methods/mod.rs
+++ b/clippy_lints/src/methods/mod.rs
@@ -1559,7 +1559,7 @@ fn check_impl_item(&mut self, cx: &LateContext<'tcx>, impl_item: &'tcx hir::Impl
             if let ty::Opaque(def_id, _) = ret_ty.kind {
                 // one of the associated types must be Self
                 for &(predicate, _span) in cx.tcx.predicates_of(def_id).predicates {
-                    if let ty::PredicateKind::Projection(projection_predicate) = predicate.ignore_qualifiers().skip_binder().kind() {
+                    if let ty::PredicateKind::Projection(projection_predicate) = predicate.ignore_quantifiers().skip_binder().kind() {
                         // walk the associated type and check for Self
                         if contains_self_ty(projection_predicate.ty) {
                             return;
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index 426772f3e9a..c4603418ee3 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -1263,7 +1263,7 @@ pub fn is_must_use_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
         ty::Tuple(ref substs) => substs.types().any(|ty| is_must_use_ty(cx, ty)),
         ty::Opaque(ref def_id, _) => {
             for (predicate, _) in cx.tcx.predicates_of(*def_id).predicates {
-                if let ty::PredicateKind::Trait(trait_predicate, _) = predicate.ignore_qualifiers().skip_binder().kind() {
+                if let ty::PredicateKind::Trait(trait_predicate, _) = predicate.ignore_quantifiers().skip_binder().kind() {
                     if must_use_attr(&cx.tcx.get_attrs(trait_predicate.trait_ref.def_id)).is_some() {
                         return true;
                     }