diff --git a/lib/dns/adb.c b/lib/dns/adb.c
index a483bc1321..59b6d56e1c 100644
--- a/lib/dns/adb.c
+++ b/lib/dns/adb.c
@@ -587,7 +587,6 @@ free_adbentry(dns_adb_t *adb, dns_adbentry_t **entry)
 
 	INSIST(e->lock_bucket == DNS_ADB_INVALIDBUCKET);
 	INSIST(e->refcnt == 0);
-	INSIST(ISC_LIST_EMPTY(e->zoneinfo));
 	INSIST(!ISC_LINK_LINKED(e, link));
 
 	e->magic = 0;