diff --git a/Util/MessageBinder.php b/Util/MessageBinder.php
index 748c2c9..39e32fe 100644
--- a/Util/MessageBinder.php
+++ b/Util/MessageBinder.php
@@ -39,6 +39,7 @@ public function __construct($message)
 
     public function readProperty($property)
     {
+        $value = null;
         if ($this->reflectionClass->hasMethod($getter = 'get'.$property)) {
             if (!$this->reflectionClass->getMethod($getter)->isPublic()) {
                 throw new \RuntimeException(sprintf('Method "%s()" is not public in class "%s"', $getter, $this->reflectionClass->name));