diff --git a/src/MySQLWizard.php b/src/MySQLWizard.php
index b3aaa07..0f1a086 100644
--- a/src/MySQLWizard.php
+++ b/src/MySQLWizard.php
@@ -23,7 +23,7 @@ public function __construct($database_sets=array())
             'echo_msg'=>false
         );
 
-        if (empty($database_sets)) {
+        if (!empty($database_sets)) {
             $database_sets = (array)$database_sets;
             foreach ($database_sets_defalt as $key=>$value) {
                 if (!isset($database_sets[$key])) {