diff --git a/src/Message/IMessagePart.php b/src/Message/IMessagePart.php
index 6a9ec042..b90f92e4 100644
--- a/src/Message/IMessagePart.php
+++ b/src/Message/IMessagePart.php
@@ -65,7 +65,7 @@ public function getCharset();
      * Returns the content's disposition, or returns the value of $default if
      * not defined.
      *
-     * @param $default Optional default value to return if not
+     * @param string $default Optional default value to return if not
      *        applicable/defined
      * @return string|null the disposition.
      */
diff --git a/src/Parser/Proxy/ParserMimePartProxy.php b/src/Parser/Proxy/ParserMimePartProxy.php
index d0575fda..57b63813 100644
--- a/src/Parser/Proxy/ParserMimePartProxy.php
+++ b/src/Parser/Proxy/ParserMimePartProxy.php
@@ -105,7 +105,6 @@ public function popNextChild()
     public function parseAll()
     {
         $this->parseContent();
-        $child = null;
         while (!$this->allChildrenParsed) {
             $this->parseNextChild();
         }