diff --git a/src/pocketmine/command/Command.php b/src/pocketmine/command/Command.php
index 2f47e2029..33b8a645b 100644
--- a/src/pocketmine/command/Command.php
+++ b/src/pocketmine/command/Command.php
@@ -55,7 +55,7 @@ abstract class Command{
 	 */
 	private $activeAliases = [];
 
-	/** @var CommandMap */
+	/** @var CommandMap|null */
 	private $commandMap = null;
 
 	/** @var string */