diff --git a/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.h b/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.h
index 54747cb04d..2992ccce71 100644
--- a/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.h
+++ b/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.h
@@ -7,6 +7,7 @@
 
 #define MICROPY_PY_PYB_LEGACY       (0)
 
+#define MICROPY_HW_HAS_FLASH        (1)
 #define MICROPY_HW_ENABLE_RTC       (1)
 #define MICROPY_HW_ENABLE_RNG       (1)
 #define MICROPY_HW_ENABLE_ADC       (0)
diff --git a/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk b/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk
index cd9f104ef5..416364df9e 100644
--- a/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk
+++ b/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk
@@ -7,3 +7,4 @@ STARTUP_FILE = lib/stm32lib/CMSIS/STM32WBxx/Source/Templates/gcc/startup_stm32wb
 # MicroPython settings
 MICROPY_PY_BLUETOOTH = 1
 MICROPY_BLUETOOTH_NIMBLE = 1
+MICROPY_VFS_LFS2 = 1
diff --git a/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.h b/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.h
index eeedfb0844..0ff751d613 100644
--- a/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.h
+++ b/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.h
@@ -7,6 +7,7 @@
 
 #define MICROPY_PY_PYB_LEGACY       (0)
 
+#define MICROPY_HW_HAS_FLASH        (1)
 #define MICROPY_HW_ENABLE_RTC       (1)
 #define MICROPY_HW_ENABLE_RNG       (1)
 #define MICROPY_HW_ENABLE_ADC       (0)
diff --git a/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk b/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk
index cd9f104ef5..416364df9e 100644
--- a/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk
+++ b/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk
@@ -7,3 +7,4 @@ STARTUP_FILE = lib/stm32lib/CMSIS/STM32WBxx/Source/Templates/gcc/startup_stm32wb
 # MicroPython settings
 MICROPY_PY_BLUETOOTH = 1
 MICROPY_BLUETOOTH_NIMBLE = 1
+MICROPY_VFS_LFS2 = 1