diff --git a/Util/Doctrine/SingleColumnArrayHydrator.php b/Util/Doctrine/SingleColumnArrayHydrator.php
index e989aaa6..afce7bd8 100644
--- a/Util/Doctrine/SingleColumnArrayHydrator.php
+++ b/Util/Doctrine/SingleColumnArrayHydrator.php
@@ -18,7 +18,7 @@ protected function hydrateAllData()
     {
         $result = [];
 
-        while ($data = $this->_stmt->fetch(\PDO::FETCH_NUM)) {
+        while ($data = $this->_stmt->fetchNumeric()) {
             $value = $data[0];
 
             if (is_numeric($value)) {