diff --git a/examples/async-curl/conf/async-curl.conf b/examples/async-curl/conf/async-curl.conf
index 7833894..d3e1e6a 100644
--- a/examples/async-curl/conf/async-curl.conf
+++ b/examples/async-curl/conf/async-curl.conf
@@ -5,6 +5,8 @@ bind		127.0.0.1 8888
 workers		1
 tls_dhparam	dh2048.pem
 
+pledge		dns
+
 domain * {
 	certfile	cert/server.pem
 	certkey		cert/key.pem