diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 2b8ff8b53af0..8a3c46cb67f5 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -1202,6 +1202,7 @@ struct btrfs_ordered_extent *btrfs_split_ordered_extent(
 	ordered->disk_bytenr += len;
 	ordered->num_bytes -= len;
 	ordered->disk_num_bytes -= len;
+	ordered->ram_bytes -= len;
 
 	if (test_bit(BTRFS_ORDERED_IO_DONE, &ordered->flags)) {
 		ASSERT(ordered->bytes_left == 0);