diff --git a/Home.md b/Home.md
index 12fa40e..6495604 100644
--- a/Home.md
+++ b/Home.md
@@ -36,6 +36,8 @@ Although Python will probably clean up the resources used by the `TelegramClient
 client.disconnect()
 ```
 
+If you get a `PhoneNumberUnoccupiedError` while calling `.sign_in()`, this is because you don't have a Telegram account yet! In this case, use `.sign_up()` instead.
+
 ## Side notes
 
 As a side note, you may come across, or find useful, these lines: