diff --git a/Framework/DoozR/Logger/Abstract.php b/Framework/DoozR/Logger/Abstract.php
index <HASH>..<HASH> 100644
--- a/Framework/DoozR/Logger/Abstract.php
+++ b/Framework/DoozR/Logger/Abstract.php
@@ -622,7 +622,7 @@ abstract class DoozR_Logger_Abstract extends DoozR_Base_Class
      */
     protected function generateFingerprint()
     {
-        return sha1(implode('', $_SERVER));
+        return sha1(serialize($_SERVER));
     }
 
     /**
hotfix: Bug in DoozR_Logger_Abstract