diff --git a/bundles/unbound/files/unbound.conf b/bundles/unbound/files/unbound.conf
index 5824f39..b9cd8c4 100644
--- a/bundles/unbound/files/unbound.conf
+++ b/bundles/unbound/files/unbound.conf
@@ -34,6 +34,9 @@ server:
     cache-max-ttl: ${max_ttl}
     cache-max-negative-ttl: 600
 
+    prefetch: yes
+    prefetch-key: yes
+
     use-syslog: yes
     log-queries: no