diff --git a/src/pocketmine/command/Command.php b/src/pocketmine/command/Command.php
index 168315401..759eed18f 100644
--- a/src/pocketmine/command/Command.php
+++ b/src/pocketmine/command/Command.php
@@ -36,8 +36,6 @@ abstract class Command{
 
 	/** @var string */
 	private $name;
-	/** @var array */
-	protected $commandData = null;
 
 	/** @var string */
 	private $nextLabel;