1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs
index 90677151d25..d482ada170e 100644
--- a/compiler/rustc_ast/src/mut_visit.rs
+++ b/compiler/rustc_ast/src/mut_visit.rs
@@ -514,7 +514,8 @@ pub fn noop_visit_ty<T: MutVisitor>(ty: &mut P<Ty>, vis: &mut T) {
             visit_vec(bounds, |bound| vis.visit_param_bound(bound));
         }
         TyKind::MacCall(mac) => vis.visit_mac_call(mac),
-        TyKind::AnonStruct(fields) | TyKind::AnonUnion(fields) => {
+        TyKind::AnonStruct(id, fields) | TyKind::AnonUnion(id, fields) => {
+            vis.visit_id(id);
             fields.flat_map_in_place(|field| vis.flat_map_field_def(field));
         }
     }