diff --git a/nginx_conf.d/certbot.conf b/nginx_conf.d/certbot.conf
index 15bf8e1..64007e1 100644
--- a/nginx_conf.d/certbot.conf
+++ b/nginx_conf.d/certbot.conf
@@ -1,6 +1,6 @@
 server {
     # Listen on plain old HTTP
-    listen 80;
+    listen 80 default_server;
 
     # Pass this particular URL off to certbot, to authenticate HTTPS certificates
     location '/.well-known/acme-challenge' {