diff --git a/Db.php b/Db.php
index edb186d..faf0dfc 100644
--- a/Db.php
+++ b/Db.php
@@ -628,6 +628,7 @@ private static function deprecationWarning()
      */
     public static function debug()
     {
+        self::init();
         self::$_env->set('debug', true);
     }