diff --git a/clippy_lints/src/dereference.rs b/clippy_lints/src/dereference.rs
index bd4ce7ab9225..e3959903fddc 100644
--- a/clippy_lints/src/dereference.rs
+++ b/clippy_lints/src/dereference.rs
@@ -814,6 +814,7 @@ fn for_hir_ty<'tcx>(ty: &'tcx hir::Ty<'tcx>) -> Self {
                 | TyKind::Tup(_)
                 | TyKind::Path(_) => Self::Deref,
                 TyKind::OpaqueDef(..)
+                | TyKind::TraitAscription(..)
                 | TyKind::Infer
                 | TyKind::Typeof(..)
                 | TyKind::TraitObject(..)
diff --git a/clippy_utils/src/hir_utils.rs b/clippy_utils/src/hir_utils.rs
index 279025b9bf93..4b604f658b8d 100644
--- a/clippy_utils/src/hir_utils.rs
+++ b/clippy_utils/src/hir_utils.rs
@@ -1260,7 +1260,8 @@ pub fn hash_tykind(&mut self, ty: &TyKind<'_>) {
             | TyKind::Infer
             | TyKind::Never
             | TyKind::InferDelegation(..)
-            | TyKind::OpaqueDef(_) => {},
+            | TyKind::OpaqueDef(_)
+            | TyKind::TraitAscription(_) => {},
         }
     }