diff --git a/README.md b/README.md
index 89fa0df..0f5e608 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,8 @@ This will give you the end of the TOML file. It will look like this:
 
 ```toml
 [mastodon.nintendojofr] ## account
-twitter_screen_name="NintendojoFR" ## User Timeline to copy
+twitter_screen_name = "NintendojoFR" ## User Timeline to copy
+mastodon_screen_name = "nintendojofr" ## optional, Mastodon account name used for smart mentions
 base = "https://m.nintendojo.fr"
 client_id = "MYCLIENTID"
 client_secret = "MYCLIENTSECRET"