diff --git a/src/Core/Kernel/Config.php b/src/Core/Kernel/Config.php
index 4e53aaa..699f318 100644
--- a/src/Core/Kernel/Config.php
+++ b/src/Core/Kernel/Config.php
@@ -20,7 +20,7 @@ class Config
         if (isset($this->container["DEBUG"])) {
             if (($this->container["DEBUG"] == "false") && !is_file($this->cachepath)) {
                 // production app cache not created
-                $str = "<?php return " . json_encode(array_values($this->container)) . "; ?>";
+                $str = "<?php return " . var_export($this->container, true) . "; ?>";
                 file_put_contents($this->cachepath, $str);
             }
         }