diff --git a/config/kernel/linux-mt7623-edge.config b/config/kernel/linux-mt7623-edge.config
index 5ae20578f7..98b5b7a0a7 100644
--- a/config/kernel/linux-mt7623-edge.config
+++ b/config/kernel/linux-mt7623-edge.config
@@ -6829,7 +6829,7 @@ CONFIG_FAT_DEFAULT_CODEPAGE=437
 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
 # CONFIG_FAT_DEFAULT_UTF8 is not set
 CONFIG_EXFAT_FS=m
-CONFIG_EXFAT_DEFAULT_IOCHARSET="m"
+CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
 CONFIG_NTFS_FS=y
 # CONFIG_NTFS_DEBUG is not set
 # CONFIG_NTFS_RW is not set
diff --git a/config/kernel/linux-odroidxu4-edge.config b/config/kernel/linux-odroidxu4-edge.config
index 1f22ec313d..d069537851 100644
--- a/config/kernel/linux-odroidxu4-edge.config
+++ b/config/kernel/linux-odroidxu4-edge.config
@@ -6756,7 +6756,7 @@ CONFIG_FAT_DEFAULT_CODEPAGE=437
 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
 CONFIG_FAT_DEFAULT_UTF8=y
 CONFIG_EXFAT_FS=m
-CONFIG_EXFAT_DEFAULT_IOCHARSET="m"
+CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
 # CONFIG_NTFS_FS is not set
 CONFIG_NTFS3_FS=m
 CONFIG_NTFS3_LZX_XPRESS=y