diff --git a/chunk-recover.c b/chunk-recover.c
index 85dc1bca..b03330b4 100644
--- a/chunk-recover.c
+++ b/chunk-recover.c
@@ -1159,9 +1159,9 @@ static int __rebuild_chunk_root(struct btrfs_trans_handle *trans,
 		if (min_devid > dev->devid)
 			min_devid = dev->devid;
 	}
-	disk_key.objectid = BTRFS_DEV_ITEMS_OBJECTID;
-	disk_key.type = BTRFS_DEV_ITEM_KEY;
-	disk_key.offset = min_devid;
+	btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_ITEMS_OBJECTID);
+	btrfs_set_disk_key_type(&disk_key, BTRFS_DEV_ITEM_KEY);
+	btrfs_set_disk_key_offset(&disk_key, min_devid);
 
 	cow = btrfs_alloc_free_block(trans, root, root->nodesize,
 				     BTRFS_CHUNK_TREE_OBJECTID,
@@ -1234,7 +1234,7 @@ static int __insert_chunk_item(struct btrfs_trans_handle *trans,
 	key.offset = chunk_rec->offset;
 
 	ret = btrfs_insert_item(trans, chunk_root, &key, chunk,
-				btrfs_chunk_item_size(chunk->num_stripes));
+				btrfs_chunk_item_size(chunk_rec->num_stripes));
 	free(chunk);
 	return ret;
 }