prefix_offset = strlen(prefix);
        git_config(git_default_config, NULL);
 
-       argc = parse_options(argc, argv, builtin_ls_files_options,
+       argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
                        ls_files_usage, 0);
        if (show_tag || show_valid_bit) {
                tag_cached = "H ";