diff --git a/libisoburn/trunk/releng/releng_print_size b/libisoburn/trunk/releng/releng_print_size
index 44894ca7..347db39e 100755
--- a/libisoburn/trunk/releng/releng_print_size
+++ b/libisoburn/trunk/releng/releng_print_size
@@ -26,7 +26,7 @@ Usage:
  $0 -rc [-keep]
 
 # without using a config file
- $0 TODO: not ready yet
+ $0 xorriso_cmd
 
 # cleanup test generated data directory and exit
  $0 -cleanup