1 files changed, 8 insertions, 7 deletions
diff --git a/ports/esp32/machine_adc.c b/ports/esp32/machine_adc.c
index cb45aab33..5cc2d8038 100644
--- a/ports/esp32/machine_adc.c
+++ b/ports/esp32/machine_adc.c
@@ -256,10 +256,11 @@ STATIC const mp_rom_map_elem_t madc_locals_dict_table[] = {
 };
 STATIC MP_DEFINE_CONST_DICT(madc_locals_dict, madc_locals_dict_table);
 
-const mp_obj_type_t machine_adc_type = {
-    { &mp_type_type },
-    .name = MP_QSTR_ADC,
-    .print = madc_print,
-    .make_new = madc_make_new,
-    .locals_dict = (mp_obj_t)&madc_locals_dict,
-};
+MP_DEFINE_CONST_OBJ_TYPE(
+    machine_adc_type,
+    MP_QSTR_ADC,
+    MP_TYPE_FLAG_NONE,
+    madc_make_new,
+    print, madc_print,
+    locals_dict, (mp_obj_t)&madc_locals_dict
+    );