diff --git a/src/Api/Controller/ListPostsController.php b/src/Api/Controller/ListPostsController.php
index 5c732bc6f1..cdaeef0a50 100644
--- a/src/Api/Controller/ListPostsController.php
+++ b/src/Api/Controller/ListPostsController.php
@@ -147,6 +147,8 @@ private function applyFilters(Builder $query, array $filter)
             $query->where('type', $type);
         }
 
+        $query->where('is_private', false);
+
         event(new ConfigurePostsQuery($query, $filter));
     }
 }