diff --git a/doc/advanced/config-cheat-sheet.en-us.md b/doc/advanced/config-cheat-sheet.en-us.md
index 7d59041e..fd32bfd1 100644
--- a/doc/advanced/config-cheat-sheet.en-us.md
+++ b/doc/advanced/config-cheat-sheet.en-us.md
@@ -587,6 +587,7 @@ NB: You must `REDIRECT_MACARON_LOG` and have `DISABLE_ROUTER_LOG` set to `false`
 - `REFRESH_TOKEN_EXPIRATION_TIME`: **730**: Lifetime of an OAuth2 access token in hours
 - `INVALIDATE_REFRESH_TOKEN`: **false**: Check if refresh token got already used
 - `JWT_SECRET`: **\<empty\>**: OAuth2 authentication secret for access and refresh tokens, change this a unique string.
+- `MAX_TOKEN_LENGTH`: **32767**: Maximum length of token/cookie to accept from OAuth2 provider
 
 ## i18n (`i18n`)