--- a/docs/api.mdwn	Tue Oct 23 13:15:37 2012 +0300
+++ b/docs/api.mdwn	Tue Nov 27 12:12:57 2012 +0200
@@ -177,7 +177,12 @@
 <a name="completion.type"></a>
 ### completion type
 Built-it completion types can be specified as string, instead of id.  
-**Values:**  cmd, jid, urljid, name, status, filename, roster, buffer, group, groupname, multiline, room, resource, auth, request, events, eventsid, pgp, color, otr, ortpolicy, yesno  
+**Values:**  cmd, jid, urljid, name, status, filename, roster, buffer, group, groupname, multiline, room, resource, auth, request, events, eventsid, pgp, color, otr, ortpolicy, module, yesno  
+
+<a name="completion.sorting.order"></a>
+### completion sorting order
+Sorting order for completion category.  
+**Values:**  sort, direct, reverse, append, prepend  
 
 <a name="command.arguments.table"></a>
 ### command arguments table
@@ -213,7 +218,7 @@
 <a name="main.add.category"></a>
 ### main.add_category
 Adds completion category.  
-**Arguments:** table (values are used as words for completion, optional)    
+**Arguments:** table (values are used as words for completion, optional), argument enum value ([completion sorting order](#completion.sorting.order), optional)    
 **Return values:** integer (category id, in fact [completion type](#completion.type)) or nil  
 
 <a name="main.del.category"></a>