diff --git a/README.md b/README.md
index 7887a0e..147e3f5 100644
--- a/README.md
+++ b/README.md
@@ -124,6 +124,9 @@ Type `php srdb.cli.php` to run the program. Type `php srdb.cli.php
   -v, --verbose [true|false]
     Defaults to true, can be set to false to run script silently.
 
+  --debug [true|false]
+    Defaults to false, prints more verbose errors.
+
   --ssl-key
     Define the path to the SSL KEY file.