diff --git a/syncthing_monitor/config_xml.py b/syncthing_monitor/config_xml.py
index 32e5278..6305fb0 100644
--- a/syncthing_monitor/config_xml.py
+++ b/syncthing_monitor/config_xml.py
@@ -10,7 +10,7 @@ def parse_api_key(xml_path):
     return api_key
 
 
-def set_listen_ip_to_any(in_xml_path, out_xml_path, gui_port):
+def set_listen_ip_to_any(in_xml_path, out_xml_path, gui_port=8384):
     with open(in_xml_path, 'r') as file:
         xml = file.read()