diff --git a/install/unbound-install.sh b/install/unbound-install.sh
index 9d0117cf..664d4d28 100644
--- a/install/unbound-install.sh
+++ b/install/unbound-install.sh
@@ -42,7 +42,6 @@ server:
   harden-dnssec-stripped: yes
   harden-referral-path: yes
   use-caps-for-id: no
-  harden-algo-downgrade: no
   qname-minimisation: yes
   rrset-roundrobin: yes
   cache-min-ttl: 300