diff --git a/repmgr.c b/repmgr.c
index 353fde88..0d90fe32 100644
--- a/repmgr.c
+++ b/repmgr.c
@@ -255,7 +255,7 @@ main(int argc, char **argv)
 		break;
 	default:
 		log_err(_("%s: too many command-line arguments (first extra is \"%s\")\n"),
-		        progname, argv[optind + 1]);
+		        progname, argv[optind]);
 		usage();
 		exit(ERR_BAD_CONFIG);
 	}