--- a/mod_http_muc_log/mod_http_muc_log.lua	Sun Nov 09 17:14:44 2014 +0100
+++ b/mod_http_muc_log/mod_http_muc_log.lua	Sun Nov 09 17:15:48 2014 +0100
@@ -37,7 +37,7 @@
 	{name?} is optional and is replaced with an empty string if no value exists
 	]]
 	return function(values)
-		return (data:gsub("{([^!}]-)(%p?)}", function (name, opt)
+		return (data:gsub("{([^}]-)(%p?)}", function (name, opt)
 			local value = values[name];
 			if value then
 				if opt ~= "!" then