diff --git a/manager-bundle/src/HttpKernel/ContaoKernel.php b/manager-bundle/src/HttpKernel/ContaoKernel.php
index <HASH>..<HASH> 100644
--- a/manager-bundle/src/HttpKernel/ContaoKernel.php
+++ b/manager-bundle/src/HttpKernel/ContaoKernel.php
@@ -81,7 +81,9 @@ class ContaoKernel extends Kernel
      */
     public function registerContainerConfiguration(LoaderInterface $loader)
     {
-        $loader->load($this->getRootDir() . '/config/config_' . $this->getEnvironment() . '.yml');
+        if (file_exists($this->getRootDir() . '/config/parameters.yml')) {
+            $loader->load($this->getRootDir() . '/config/parameters.yml');
+        }
     }
 
     /**
[Manager] Managed edition only has a parameters.yml generated by install tool