diff --git a/ports/stm32/modmachine.c b/ports/stm32/modmachine.c
index a4ee47470b..7ea14bdcd6 100644
--- a/ports/stm32/modmachine.c
+++ b/ports/stm32/modmachine.c
@@ -384,8 +384,8 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_Pin),                 MP_ROM_PTR(&pin_type) },
     { MP_ROM_QSTR(MP_QSTR_Signal),              MP_ROM_PTR(&machine_signal_type) },
 
-#if 0
     { MP_ROM_QSTR(MP_QSTR_RTC),                 MP_ROM_PTR(&pyb_rtc_type) },
+#if 0
     { MP_ROM_QSTR(MP_QSTR_ADC),                 MP_ROM_PTR(&pyb_adc_type) },
 #endif
 #if MICROPY_PY_MACHINE_I2C