--- a/core/rostermanager.lua	Thu Mar 29 16:42:24 2018 +0200
+++ b/core/rostermanager.lua	Thu Mar 29 16:58:06 2018 +0200
@@ -15,7 +15,7 @@
 local tostring = tostring;
 local type = type;
 
-local hosts = hosts;
+local hosts = prosody.hosts;
 local bare_sessions = prosody.bare_sessions;
 
 local um_user_exists = require "core.usermanager".user_exists;