diff --git a/SUMMARY.md b/SUMMARY.md
index 277dd83..513783b 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -3,5 +3,6 @@
 * [Introduzione](README.md)
 * [Web Moderno](web_moderno.md)
 * [Tor](tor.md)
+   * Funzionamento
 * [Bitcoin](bitcoin.md)