diff --git a/readme.md b/readme.md
index 81a1245..0134862 100644
--- a/readme.md
+++ b/readme.md
@@ -142,11 +142,13 @@ class MyModel extends base\MyModel
 
     public function fields()
     {
-        $fields = [];
+        $fields = parent::fields();
+        $flagFields = [];
         foreach (self::BIT_FLAGS as $bitFlag) {
-            $fields = ArrayHelper::merge($fields, array_combine($bitFlag, $bitFlag));
+            $flagFields = ArrayHelper::merge($flagFields, array_combine($bitFlag, $bitFlag));
         }
-        return ArrayHelper::merge(parent::fields(), $fields);
+        unset($fields['bit_flag']);
+        return ArrayHelper::merge($fields, $flagFields);
     }
 
     public function behaviors()