diff --git a/configs/pic32mzdask_defconfig b/configs/pic32mzdask_defconfig
index 9eb8076..688b989 100644
--- a/configs/pic32mzdask_defconfig
+++ b/configs/pic32mzdask_defconfig
@@ -42,5 +42,6 @@
 CONFIG_USB_MUSB_HOST=y
 CONFIG_USB_MUSB_PIC32=y
 CONFIG_USB_STORAGE=y
+CONFIG_FAT_WRITE=y
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y