enum interesting match;
 
        while (t->size) {
-               match = tree_entry_interesting(&t->entry, base, 0, &opt->pathspec);
+               match = tree_entry_interesting(opt->repo->index, &t->entry,
+                                              base, 0, &opt->pathspec);
                if (match) {
                        if (match == all_entries_not_interesting)
                                t->size = 0;