--- a/net/httpserver.lua	Fri Mar 23 13:18:28 2018 +0100
+++ b/net/httpserver.lua	Fri Mar 23 13:20:19 2018 +0100
@@ -5,7 +5,7 @@
 local _ENV = nil;
 -- luacheck: std none
 
-function fail()
+local function fail()
 	log("error", "Attempt to use legacy HTTP API. For more info see https://prosody.im/doc/developers/legacy_http");
 	log("error", "Legacy HTTP API usage, %s", traceback("", 2));
 end