diff --git a/doc/TODO.md b/doc/TODO.md
index 4c0715a..24c3783 100644
--- a/doc/TODO.md
+++ b/doc/TODO.md
@@ -5,4 +5,5 @@
 * Stop extension enumeration with ctrl-c
 * Privoxy check
 * --threads
-* --header (default is Mozilla/5.0)
+* --user-agent (default is Mozilla/5.0)
+* --header (customize header fields)