diff --git a/conf/app.ini b/conf/app.ini
index 3cea1fdd0..20ff34944 100644
--- a/conf/app.ini
+++ b/conf/app.ini
@@ -181,9 +181,14 @@ SERVICE = server
 DISABLE_GRAVATAR = false
 
 [attachment]
+; Path for attachments. Defaults to files/attachments
 PATH = 
 ; One or more allowed types, e.g. image/jpeg|image/png
 ALLOWED_TYPES = 
+; Max size of each file. Defaults to 32MB
+MAX_SIZE
+; Max number of files per upload. Defaults to 10
+MAX_FILES =
 
 [log]
 ROOT_PATH =