diff --git a/libc/kernel/uapi/linux/incrementalfs.h b/libc/kernel/uapi/linux/incrementalfs.h
index ad2424e..65d825c 100644
--- a/libc/kernel/uapi/linux/incrementalfs.h
+++ b/libc/kernel/uapi/linux/incrementalfs.h
@@ -28,12 +28,15 @@
 #define INCFS_HEADER_VER 1
 #define INCFS_MAX_HASH_SIZE 32
 #define INCFS_MAX_FILE_ATTR_SIZE 512
+#define INCFS_INDEX_NAME ".index"
+#define INCFS_INCOMPLETE_NAME ".incomplete"
 #define INCFS_PENDING_READS_FILENAME ".pending_reads"
 #define INCFS_LOG_FILENAME ".log"
 #define INCFS_BLOCKS_WRITTEN_FILENAME ".blocks_written"
 #define INCFS_XATTR_ID_NAME (XATTR_USER_PREFIX "incfs.id")
 #define INCFS_XATTR_SIZE_NAME (XATTR_USER_PREFIX "incfs.size")
 #define INCFS_XATTR_METADATA_NAME (XATTR_USER_PREFIX "incfs.metadata")
+#define INCFS_XATTR_VERITY_NAME (XATTR_USER_PREFIX "incfs.verity")
 #define INCFS_MAX_SIGNATURE_SIZE 8096
 #define INCFS_SIGNATURE_VERSION 2
 #define INCFS_SIGNATURE_SECTIONS 2