diff --git a/kahlan-config.php b/kahlan-config.php
index 9754d47d..89b6a9c2 100644
--- a/kahlan-config.php
+++ b/kahlan-config.php
@@ -27,6 +27,10 @@ class_alias(AbstractPluginManager::class, Zend\ServiceManager\AbstractPluginMana
 
             // mezzio preview page
             'src/Middleware/Routed/Preview/ErrorPreviewAction.php',
+
+            // compatible code
+            'src/Compat/Logger.php',
+            'src/Compat/LoggerAbstractServiceFactory.php'
         ],
         'colors'    => ! $this->commandLine()->get('no-colors')
     ]);