diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index a2b3468e9..22d1e79fc 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -463,12 +463,12 @@ abstract class Entity extends Location implements Metadatable, EntityIds{
 	/** @var Block[]|null */
 	protected $blocksAround = null;
 
-	/** @var float|null */
-	public $lastX = null;
-	/** @var float|null */
-	public $lastY = null;
-	/** @var float|null */
-	public $lastZ = null;
+	/** @var float */
+	public $lastX;
+	/** @var float */
+	public $lastY;
+	/** @var float */
+	public $lastZ;
 
 	/** @var Vector3 */
 	protected $motion;