diff --git a/mysql_test.lua b/mysql_test.lua
index d6c9b64..3f0f496 100644
--- a/mysql_test.lua
+++ b/mysql_test.lua
@@ -1,4 +1,5 @@
 --mysql test unit (see comments for problems with libmariadb)
+--NOTE: create a database called 'test' first to run these tests!
 local mysql = require'mysql'
 local glue = require'glue'
 local pp = require'pp'