diff --git a/symfony/framework-bundle/3.3/src/Kernel.php b/symfony/framework-bundle/3.3/src/Kernel.php
index 4a1c506d..19fcdd60 100644
--- a/symfony/framework-bundle/3.3/src/Kernel.php
+++ b/symfony/framework-bundle/3.3/src/Kernel.php
@@ -42,6 +42,7 @@ class Kernel extends BaseKernel
             $loader->load($confDir.'/packages/'.$this->environment.'/**/*'.self::CONFIG_EXTS, 'glob');
         }
         $loader->load($confDir.'/services'.self::CONFIG_EXTS, 'glob');
+        $loader->load($confDir.'/services_'.$this->environment.self::CONFIG_EXTS, 'glob');
     }
 
     protected function configureRoutes(RouteCollectionBuilder $routes): void