diff --git a/System.md b/System.md
index a34cb55..d8f4ee5 100644
--- a/System.md
+++ b/System.md
@@ -79,6 +79,6 @@ sudo apt install gnome
 
 Remove useless packages
 ```
-sudo apt remove --purge gnome-tour gnome-software evolution libreoffice-*
+sudo apt remove --purge gnome-tour gnome-software evolution libreoffice-* zutty
 sudo apt autoremove --purge
 ```
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