diff --git a/src/bundle/Controller/Content/ContentTreeController.php b/src/bundle/Controller/Content/ContentTreeController.php
index 29a10e06e6..3170656df0 100644
--- a/src/bundle/Controller/Content/ContentTreeController.php
+++ b/src/bundle/Controller/Content/ContentTreeController.php
@@ -23,6 +23,7 @@
 use Ibexa\Contracts\Core\Repository\Values\Content\Content;
 use Ibexa\Contracts\Core\Repository\Values\Content\Location;
 use Ibexa\Contracts\Core\Repository\Values\Content\Query;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion;
 use Ibexa\Contracts\Core\Repository\Values\User\Limitation;
 use Ibexa\Contracts\Core\SiteAccess\ConfigResolverInterface;
 use Ibexa\Rest\Message;
@@ -78,7 +79,7 @@ public function loadChildrenAction(
         int $parentLocationId,
         int $limit,
         int $offset,
-        Query\Criterion $filter
+        Criterion\LogicalAnd $filter
     ): Node {
         $location = $this->locationService->loadLocation($parentLocationId);
         $loadSubtreeRequestNode = new LoadSubtreeRequestNode($parentLocationId, $limit, $offset);
@@ -86,6 +87,10 @@ public function loadChildrenAction(
         $sortClause = $request->query->get('sortClause', null);
         $sortOrder = $request->query->getAlpha('sortOrder', Query::SORT_ASC);
 
+        if (empty($filter->criteria)) {
+            $filter = null;
+        }
+
         return $this->contentTreeNodeFactory->createNode(
             $location,
             $loadSubtreeRequestNode,