diff --git a/kirbi2john.py b/kirbi2john.py
index f99ab60..7a33547 100755
--- a/kirbi2john.py
+++ b/kirbi2john.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env -S python3 -tt
 # Based on the Kerberoast script from Tim Medin to extract the Kerberos tickets
 # from a kirbi file.
 # Modification to parse them into the JTR-format by Michael Kramer (SySS GmbH)