diff --git a/export-image/prerun.sh b/export-image/prerun.sh
index f687785..e2979cf 100755
--- a/export-image/prerun.sh
+++ b/export-image/prerun.sh
@@ -58,7 +58,7 @@ for FEATURE in metadata_csum 64bit; do
 	fi
 done
 mkdosfs -n boot -F 32 -v $BOOT_DEV > /dev/null
-mkfs.ext4 -O $ROOT_FEATURES $ROOT_DEV > /dev/null
+mkfs.ext4 -L rootfs-O $ROOT_FEATURES $ROOT_DEV > /dev/null
 
 mount -v $ROOT_DEV ${ROOTFS_DIR} -t ext4
 mkdir -p ${ROOTFS_DIR}/boot