diff --git a/README.md b/README.md
index 62d8cbc..11a488f 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,5 @@ a bulk key checker for various AI services
 currently supports openai, anthropic, ai21, palm and AWS keys. it also lists various attributes for each (org, rpm limit, pozzed status etc)
 
 may add support for azure keys in the future
+
+run with -nooutput to stop outputting keys to a file