diff --git a/src/Server/Fault.php b/src/Server/Fault.php
index 74cdd98..7ce4121 100644
--- a/src/Server/Fault.php
+++ b/src/Server/Fault.php
@@ -57,7 +57,6 @@ public function __construct(\Exception $e)
         $this->exception = $e;
         $code             = 404;
         $message          = 'Unknown error';
-        $exceptionClass   = get_class($e);
 
         foreach (array_keys(self::$faultExceptionClasses) as $class) {
             if ($e instanceof $class) {