diff --git a/ports/samd/mcu/samd51/mpconfigmcu.h b/ports/samd/mcu/samd51/mpconfigmcu.h
index a266adf93c..5735f512b5 100644
--- a/ports/samd/mcu/samd51/mpconfigmcu.h
+++ b/ports/samd/mcu/samd51/mpconfigmcu.h
@@ -14,6 +14,7 @@
 #define MICROPY_PY_CMATH                (0)
 
 #define MICROPY_PY_MACHINE_DHT_READINTO (1)
+#define MICROPY_PY_ONEWIRE              (1)
 #define MICROPY_PY_UOS_URANDOM          (1)
 #define MICROPY_PY_URANDOM_SEED_INIT_FUNC (trng_random_u32())
 unsigned long trng_random_u32(void);