diff --git a/web/inc/classes/Model.class.php b/web/inc/classes/Model.class.php
index 5dadd70..de763de 100644
--- a/web/inc/classes/Model.class.php
+++ b/web/inc/classes/Model.class.php
@@ -190,7 +190,7 @@ class Model {
                 $this->data[$key] = $value;
             }
 
-            if($options['default']!==null && $newgen === true && !$value)
+            if($options['default']!==null && $newgen === true && !isset($value))
             {
                 $value = $options['default'];
                 $this->data[$key] = $value;