diff --git a/classes/submission/reviewAssignment/Collector.php b/classes/submission/reviewAssignment/Collector.php
index 60c460bac9c..8acc7b52c7b 100644
--- a/classes/submission/reviewAssignment/Collector.php
+++ b/classes/submission/reviewAssignment/Collector.php
@@ -38,7 +38,7 @@ class Collector implements CollectorInterface, ViewsCount
     public bool $isLastReviewRound = false;
     public ?int $count = null;
     public ?int $offset = null;
-    public ?int $reviewMethods = null;
+    public ?array $reviewMethods = null;
     public ?int $stageId = null;
     public ?array $reviewFormIds = null;