diff --git a/ports/espressif/boards/lilygo_ttgo_t-oi-plus/pins.c b/ports/espressif/boards/lilygo_ttgo_t-oi-plus/pins.c
index 79f2e2e42d..c906b7a555 100644
--- a/ports/espressif/boards/lilygo_ttgo_t-oi-plus/pins.c
+++ b/ports/espressif/boards/lilygo_ttgo_t-oi-plus/pins.c
@@ -4,7 +4,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
     { MP_ROM_QSTR(MP_QSTR_IO2), MP_ROM_PTR(&pin_GPIO2) },
     { MP_ROM_QSTR(MP_QSTR_BATTERY), MP_ROM_PTR(&pin_GPIO2) },
-    { MP_ROM_QSTR(MP_QSTR_VOLTAGE_MONITOR), MP_ROM_PTR(&pin_GPIO2) },    
+    { MP_ROM_QSTR(MP_QSTR_VOLTAGE_MONITOR), MP_ROM_PTR(&pin_GPIO2) },
     { MP_ROM_QSTR(MP_QSTR_IO8), MP_ROM_PTR(&pin_GPIO8) },
     { MP_ROM_QSTR(MP_QSTR_IO9), MP_ROM_PTR(&pin_GPIO9) },
     { MP_ROM_QSTR(MP_QSTR_IO4), MP_ROM_PTR(&pin_GPIO4) },