--- a/mod_smacks/mod_smacks.lua	Wed Mar 16 11:09:46 2016 +0000
+++ b/mod_smacks/mod_smacks.lua	Wed Mar 16 13:14:01 2016 +0100
@@ -85,7 +85,7 @@
 		session.log("debug", "#queue = %d", #queue);
 		if session.hibernating then
 			session.log("debug", "hibernating, stanza queued");
-			return ""; -- Hack to make session.send() not return nil
+			return nil;
 		end
 		if #queue > max_unacked_stanzas and not session.awaiting_ack then
 			session.awaiting_ack = true;