diff --git a/mysql.md b/mysql.md
index ac12415..5bb97c9 100644
--- a/mysql.md
+++ b/mysql.md
@@ -2,8 +2,9 @@
 ## `local mysql = require'mysql'`
 
 MySQL client protocol in Lua. Ripped from OpenResty, modified to work with
-[sock], added prepared statements, better interpretation of field metadata
-(consistent with [sqlpp], [schema] and [x-widgets]), and other minor changes.
+[sock] (but you can bring your own I/O), added prepared statements,
+better interpretation of field metadata (consistent with [sqlpp], [schema]
+and [x-widgets]), and other minor changes.
 
 ## Example