diff --git a/README.md b/README.md
index e05a0d2..5c101e3 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ The addon and system tray application can do:
 - custom new mail icon
 - display number of unread mails
 - show / hide Thunderbird (minimize)
-- minimizing hides to tray
+- minimizing hides to tray (remove Thunderbird from taskbar when minimized)
 - minimize on startup
 - minimize on close