diff --git a/docs/administrator-manual/migration.md b/docs/administrator-manual/migration.md
index 730001b1..11a034bf 100644
--- a/docs/administrator-manual/migration.md
+++ b/docs/administrator-manual/migration.md
@@ -172,6 +172,7 @@ The following features are not migrated to NethSecurity:
 - **Bandwidth monitor** (ntopng): available in [Real-time monitoring](./monitoring/monitoring.md) and [Metrics](./system/controller.md)
 - **Fail2ban**: replaced by Threat Shield [brute force protection](./security/threat_shield_ip.md)
 - **Threat Shield DNS**: must be reconfigured manually — see [Threat Shield DNS](./security/threat_shield_dns.md)
+- **Custom templates** (`template-custom`): are not migrated. Verify whether they are still required in the new version and, if so, recreate them manually or, where supported, from the web interface.
 
 ## Custom Zones