diff --git a/src/Collection/EntityCollection.php b/src/Collection/EntityCollection.php
index 5b64dec..8bf78b0 100644
--- a/src/Collection/EntityCollection.php
+++ b/src/Collection/EntityCollection.php
@@ -11,7 +11,7 @@
 abstract class EntityCollection implements \Countable, \Iterator
 {
     /** @var array */
-    private $entities;
+    private $entities = array();
     /** @var bool */
     protected $allowEntitiesChildren;