diff --git a/src/command/Command.php b/src/command/Command.php
index b144ad404..175be6433 100644
--- a/src/command/Command.php
+++ b/src/command/Command.php
@@ -90,7 +90,7 @@ abstract class Command{
 	}
 
 	/**
-	 * @param string[]|string|null $permissions
+	 * @param string[] $permissions
 	 */
 	public function setPermissions(array $permissions) : void{
 		$permissionManager = PermissionManager::getInstance();