diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 734d8d442562cb7b05b38c94eb508038c3af0ca7..77fd264b01d338fcbdfec5a13c1171b9d9038093 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -981,7 +981,7 @@ fn visit_fn_ret_ty(&mut self, ret_ty: &ast::FunctionRetTy) {
                 ast::TyKind::Never => return,
                 _ => (),
             };
-            visit::walk_ty(self, output_ty)
+            self.visit_ty(output_ty)
         }
     }