diff --git a/docs/releases/upgrading/upgrade-v12.0.md b/docs/releases/upgrading/upgrade-v12.0.md
index 56a7b814..61055981 100644
--- a/docs/releases/upgrading/upgrade-v12.0.md
+++ b/docs/releases/upgrading/upgrade-v12.0.md
@@ -127,6 +127,7 @@ invenio access allow superuser-access role administration
 ```bash
 COMMUNITIES_IDENTITIES_CACHE_REDIS_URL = "URI_TO_REDIS"
 USERS_RESOURCES_ADMINISTRATION_ENABLED = True
+THEME_SITENAME = "Project name for header and UI"
 ```
 
 ## Big Changes