diff --git a/lib/Doctrine/ORM/Query/TreeWalkerChainIterator.php b/lib/Doctrine/ORM/Query/TreeWalkerChainIterator.php
index d693b422a..1b0fb8a4f 100644
--- a/lib/Doctrine/ORM/Query/TreeWalkerChainIterator.php
+++ b/lib/Doctrine/ORM/Query/TreeWalkerChainIterator.php
@@ -1,14 +1,27 @@
 <?php
-/**
- * doctrine2
- * User: shustrik
- * Date: 2/6/14
- * Time: 7:03 PM
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
  */
 
 namespace Doctrine\ORM\Query;
 
-
+/**
+ * 
+ */
 class TreeWalkerChainIterator implements \Iterator, \ArrayAccess
 {
     /**