--- a/plugins/mod_admin_adhoc.lua	Wed Aug 26 13:08:10 2015 +0200
+++ b/plugins/mod_admin_adhoc.lua	Wed Aug 26 13:08:51 2015 +0200
@@ -614,6 +614,7 @@
 end);
 
 local function send_to_online(message, server)
+	local sessions;
 	if server then
 		sessions = { [server] = hosts[server] };
 	else