diff --git a/src/pocketmine/item/enchantment/Enchantment.php b/src/pocketmine/item/enchantment/Enchantment.php
index 7017a6f07..ee0c57865 100644
--- a/src/pocketmine/item/enchantment/Enchantment.php
+++ b/src/pocketmine/item/enchantment/Enchantment.php
@@ -127,11 +127,17 @@ class Enchantment{
 		return null;
 	}
 
+	/** @var int */
 	private $id;
+	/** @var int */
 	private $level = 1;
+	/** @var string */
 	private $name;
+	/** @var int */
 	private $rarity;
+	/** @var int */
 	private $activationType;
+	/** @var int */
 	private $slot;
 
 	/**