1 files changed, 11 insertions, 10 deletions
diff --git a/ports/esp32/machine_uart.c b/ports/esp32/machine_uart.c
index 724459128..9df16ae41 100644
--- a/ports/esp32/machine_uart.c
+++ b/ports/esp32/machine_uart.c
@@ -530,13 +530,14 @@ STATIC const mp_stream_p_t uart_stream_p = {
     .is_text = false,
 };
 
-const mp_obj_type_t machine_uart_type = {
-    { &mp_type_type },
-    .name = MP_QSTR_UART,
-    .print = machine_uart_print,
-    .make_new = machine_uart_make_new,
-    .getiter = mp_identity_getiter,
-    .iternext = mp_stream_unbuffered_iter,
-    .protocol = &uart_stream_p,
-    .locals_dict = (mp_obj_dict_t *)&machine_uart_locals_dict,
-};
+MP_DEFINE_CONST_OBJ_TYPE(
+    machine_uart_type,
+    MP_QSTR_UART,
+    MP_TYPE_FLAG_NONE,
+    machine_uart_make_new,
+    print, machine_uart_print,
+    getiter, mp_identity_getiter,
+    iternext, mp_stream_unbuffered_iter,
+    protocol, &uart_stream_p,
+    locals_dict, (mp_obj_dict_t *)&machine_uart_locals_dict
+    );