diff --git a/kernel/repositories/base.php b/kernel/repositories/base.php
index ca0e24d..fd6d127 100644
--- a/kernel/repositories/base.php
+++ b/kernel/repositories/base.php
@@ -20,12 +20,12 @@ class Repository {
         return $db->doquery($this->table, $query, $params);
     }
 
-    protected function fetchOne($query, $params) {
+    protected function fetchOne($query, $params = []) {
         $stmt = $this->doquery($query, $params);
         return $stmt->fetch(PDO::FETCH_ASSOC);
     }
 
-    protected function fetchAll($query, $params) {
+    protected function fetchAll($query, $params = []) {
         $stmt = $this->doquery($query, $params);
         return $stmt->fetchAll(PDO::FETCH_ASSOC);
     }