diff --git a/br-ext-chip-hisilicon/board/hi3536dv100/kernel/hi3536dv100.generic.config b/br-ext-chip-hisilicon/board/hi3536dv100/kernel/hi3536dv100.generic.config
index c1d5c753..3deafcb6 100644
--- a/br-ext-chip-hisilicon/board/hi3536dv100/kernel/hi3536dv100.generic.config
+++ b/br-ext-chip-hisilicon/board/hi3536dv100/kernel/hi3536dv100.generic.config
@@ -2351,9 +2351,9 @@ CONFIG_ISO9660_FS=y
 #
 # DOS/FAT/NT Filesystems
 #
-CONFIG_FAT_FS=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
+CONFIG_FAT_FS=m
+# CONFIG_MSDOS_FS is not set
+CONFIG_VFAT_FS=m
 CONFIG_FAT_DEFAULT_CODEPAGE=437
 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
 # CONFIG_FAT_DEFAULT_UTF8 is not set