diff --git a/mod/admin.php b/mod/admin.php
index 7e90e44cb7..0576a1b247 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -784,7 +784,9 @@ function admin_page_workerqueue(App $a)
 	$statement = DBA::select('workerqueue', ['id', 'parameter', 'created', 'priority'], ['done' => 0], ['order'=> ['priority']]);
 	$r = DBA::inArray($statement);
 
-	$r[$i]['parameter'] = implode(json_decode($r[$i]['parameter']), ': ');
+	for($i = 0; $i < count($r); $i++) {
+		$r[$i]['parameter'] = implode(json_decode($r[$i]['parameter']), ': ');
+	}
 
 	$t = get_markup_template('admin/workerqueue.tpl');
 	return replace_macros($t, [