diff --git a/modules/upnp/doc_classes/UPNP.xml b/modules/upnp/doc_classes/UPNP.xml
index 4888dca8225..d4054948f64 100644
--- a/modules/upnp/doc_classes/UPNP.xml
+++ b/modules/upnp/doc_classes/UPNP.xml
@@ -41,7 +41,7 @@
 
 		func _ready():
 		    thread = Thread.new()
-		    thread.start(self, "_upnp_setup", SERVER_PORT)
+		    thread.start(_upnp_setup.bind(SERVER_PORT))
 
 		func _exit_tree():
 		    # Wait for thread finish here to handle game exit while the thread is running.