diff --git a/boards/adafruit-itsybitsy-m4/Makefile.dep b/boards/adafruit-itsybitsy-m4/Makefile.dep
index 87253c2f37ac..d0ba96b7cb59 100644
--- a/boards/adafruit-itsybitsy-m4/Makefile.dep
+++ b/boards/adafruit-itsybitsy-m4/Makefile.dep
@@ -7,5 +7,11 @@ ifneq (,$(filter mtd,$(USEMODULE)))
   USEMODULE += mtd_spi_nor
 endif
 
+# default to using littlefs2 on the external flash
+ifneq (,$(filter vfs_default,$(USEMODULE)))
+  USEPKG += littlefs2
+  USEMODULE += mtd
+endif
+
 # setup the samd21 arduino bootloader related dependencies
 include $(RIOTBOARD)/common/samdx1-arduino-bootloader/Makefile.dep
diff --git a/boards/adafruit-itsybitsy-m4/board.c b/boards/adafruit-itsybitsy-m4/board.c
index f908ebbf21b7..0ea8d0c23056 100644
--- a/boards/adafruit-itsybitsy-m4/board.c
+++ b/boards/adafruit-itsybitsy-m4/board.c
@@ -21,6 +21,9 @@
 #include "periph/gpio.h"
 #include "mtd_spi_nor.h"
 #include "timex.h"
+#ifdef MODULE_VFS_DEFAULT
+#include "vfs_default.h"
+#endif
 
 #ifdef MODULE_MTD
 /* GD25x16 */
@@ -52,4 +55,8 @@ static mtd_spi_nor_t samd51_nor_dev = {
 };
 
 mtd_dev_t *mtd0 = (mtd_dev_t *)&samd51_nor_dev;
+
+#ifdef MODULE_VFS_DEFAULT
+VFS_AUTO_MOUNT(littlefs2, VFS_MTD(samd51_nor_dev), VFS_DEFAULT_NVM(0), 0);
+#endif
 #endif /* MODULE_MTD */