diff --git a/Resources/bundle-creator/skel/Installation/AdditionalInstaller.php b/Resources/bundle-creator/skel/Installation/AdditionalInstaller.php
index <HASH>..<HASH> 100644
--- a/Resources/bundle-creator/skel/Installation/AdditionalInstaller.php
+++ b/Resources/bundle-creator/skel/Installation/AdditionalInstaller.php
@@ -6,7 +6,7 @@ use Claroline\InstallationBundle\Additional\AdditionalInstaller as BaseInstaller
 
 class AdditionalInsaller extends BaseInstaller
 {
-    private $logger;
+    protected $logger;
 
     public function preUpdate($currentVersion, $targetVersion)
     {
[CoreBundle] Update AdditionalInstaller.php