diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 72b17276c25552ec80a40e130509ae6ec2b11486..e8b29da30154089687449eb21af887711d566983 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3808,7 +3808,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
 		while (start <= end) {
 			eb = btrfs_find_tree_block(root, start,
 						   root->leafsize);
-			start += eb->len;
+			start += root->leafsize;
 			if (!eb)
 				continue;
 			wait_on_extent_buffer_writeback(eb);