diff --git a/docs/database/query-database.md b/docs/database/query-database.md
index ce8560f..767075b 100644
--- a/docs/database/query-database.md
+++ b/docs/database/query-database.md
@@ -129,7 +129,7 @@ ID | Status | | Details
 12 | Allowed | ✅ | Retried query
 13 | Allowed | ✅ | Retried but ignored query (this may happen during ongoing DNSSEC validation)
 14 | Allowed | ✅ | Already forwarded, not forwarding again
-15 | Blocked | ❌ | Blocked (database is busy)<br> How these queries are handled can be configured
+15 | Blocked | ❌ | Blocked (database is busy)<br> How these queries are handled can be configured (dns.replyWhenBusy)
 16 | Blocked | ❌ | Blocked (special domain)<br>*E.g. Mozilla's canary domain and Apple's Private Relay domains* <br> Handling can be [configured](../ftldns/configfile.md)
 17 | Allowed | ✅⌛ | Replied from *stale* cache
 18 | Blocked | ❌ | By upstream server (EDE 15)