diff --git a/src/Model/Post/Delayed.php b/src/Model/Post/Delayed.php
index 5af32d52ef..9d4fa69022 100644
--- a/src/Model/Post/Delayed.php
+++ b/src/Model/Post/Delayed.php
@@ -125,7 +125,7 @@ class Delayed
 			return [];
 		}
 
-		$parameters = json_decode($worker['parameter']);
+		$parameters = json_decode($worker['parameter'], true);
 		if (empty($parameters)) {
 			return [];
 		}