diff --git a/default.toml b/default.toml
index f273172..b5c2953 100644
--- a/default.toml
+++ b/default.toml
@@ -5,7 +5,7 @@ twitter_account = ""
 # Domain name of Mastodon instance
 mastodon_instance = ""
 
-# Mastodon username
+# Mastodon username (login email address)
 mastodon_user = ""
 
 [options]