diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 9774779f060b..ac4c4573ee39 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1740,7 +1740,7 @@ static int check_extent_data_ref(struct extent_buffer *leaf,
 			     objectid > BTRFS_LAST_FREE_OBJECTID)) {
 			extent_err(leaf, slot,
 				   "invalid extent data backref objectid value %llu",
-				   root);
+				   objectid);
 			return -EUCLEAN;
 		}
 		if (unlikely(!IS_ALIGNED(offset, leaf->fs_info->sectorsize))) {