diff --git a/clippy_lints/src/dereference.rs b/clippy_lints/src/dereference.rs
index 560b2acc1c7..eb317c70926 100644
--- a/clippy_lints/src/dereference.rs
+++ b/clippy_lints/src/dereference.rs
@@ -821,6 +821,7 @@ fn for_hir_ty<'tcx>(ty: &'tcx hir::Ty<'tcx>) -> Self {
                 | TyKind::Array(..)
                 | TyKind::Ptr(_)
                 | TyKind::BareFn(_)
+                | TyKind::Pat(..)
                 | TyKind::Never
                 | TyKind::Tup(_)
                 | TyKind::Path(_) => Self::Deref,
diff --git a/clippy_utils/src/hir_utils.rs b/clippy_utils/src/hir_utils.rs
index f8bbe997774..6c3d9329932 100644
--- a/clippy_utils/src/hir_utils.rs
+++ b/clippy_utils/src/hir_utils.rs
@@ -1068,6 +1068,10 @@ pub fn hash_tykind(&mut self, ty: &TyKind<'_>) {
                 self.hash_ty(ty);
                 self.hash_array_length(len);
             },
+            TyKind::Pat(ty, pat) => {
+                self.hash_ty(ty);
+                self.hash_pat(pat);
+            },
             TyKind::Ptr(ref mut_ty) => {
                 self.hash_ty(mut_ty.ty);
                 mut_ty.mutbl.hash(&mut self.s);