diff --git a/lib/classes/databox.php b/lib/classes/databox.php
index 3d50a69206..262c7190fd 100644
--- a/lib/classes/databox.php
+++ b/lib/classes/databox.php
@@ -820,8 +820,8 @@ class databox extends base
             ->from('coll', 'c');
         if (count($colls) > 0) {
             $builder
-                ->where($builder->expr()->notIn('c.coll_id', ':colls'))
-                ->setParameter('colls', $colls)
+                ->where($builder->expr()->notIn('c.coll_id', [':colls']))
+                ->setParameter('colls', $colls, Connection::PARAM_INT_ARRAY)
             ;
         }