diff --git a/DependencyInjection/TrsteelCkeditorExtension.php b/DependencyInjection/TrsteelCkeditorExtension.php
index 1c004bb..de2fb74 100755
--- a/DependencyInjection/TrsteelCkeditorExtension.php
+++ b/DependencyInjection/TrsteelCkeditorExtension.php
@@ -4,8 +4,8 @@
 
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 
 /**
  * This is the class that loads and manages your bundle configuration.
diff --git a/Form/Type/CkeditorType.php b/Form/Type/CkeditorType.php
index 0702e9f..6c1567c 100755
--- a/Form/Type/CkeditorType.php
+++ b/Form/Type/CkeditorType.php
@@ -35,7 +35,7 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
             if (isset($this->transformers[$transformer_alias])) {
                 $builder->addViewTransformer($this->transformers[$transformer_alias]);
             } else {
-                throw new \Exception(sprintf("'%s' is not a valid transformer.", $transformer_alias));
+                throw new \Exception(\sprintf("'%s' is not a valid transformer.", $transformer_alias));
             }
         }