diff --git a/ports/samd/boards/SEEED_WIO_TERMINAL/mpconfigboard.h b/ports/samd/boards/SEEED_WIO_TERMINAL/mpconfigboard.h
index cfda18d11c..8260992101 100644
--- a/ports/samd/boards/SEEED_WIO_TERMINAL/mpconfigboard.h
+++ b/ports/samd/boards/SEEED_WIO_TERMINAL/mpconfigboard.h
@@ -1,2 +1,4 @@
 #define MICROPY_HW_BOARD_NAME "Wio Terminal D51R"
 #define MICROPY_HW_MCU_NAME   "SAMD51P19A"
+
+#define MICROPY_HW_XOSC32K          (1)