diff --git a/default.nginx.conf b/default.nginx.conf
index baf373e..b7d549e 100644
--- a/default.nginx.conf
+++ b/default.nginx.conf
@@ -1,3 +1,5 @@
+include /etc/nginx/modules/http_lua.conf;
+
 events {}
 
 set_by_lua $nginx_proxy_source_port 'return os.getenv("$NGINX_PROXY_SOURCE_PORT")';