diff --git a/ports/nrf/boards/microbit_v2/mpconfigboard.mk b/ports/nrf/boards/microbit_v2/mpconfigboard.mk
index a893acec4424..c817654c6ddd 100644
--- a/ports/nrf/boards/microbit_v2/mpconfigboard.mk
+++ b/ports/nrf/boards/microbit_v2/mpconfigboard.mk
@@ -7,7 +7,6 @@ INTERNAL_FLASH_FILESYSTEM = 1
 
 CIRCUITPY_ALARM = 0
 CIRCUITPY_AUDIOMP3 = 0
-CIRCUITPY_BINASCII = 0
 CIRCUITPY_BITBANGIO = 0
 CIRCUITPY_BUILTINS_POW3=0
 CIRCUITPY_BUSDEVICE = 0