diff --git a/lib/SimpleSAML/Database.php b/lib/SimpleSAML/Database.php
index 685fe568f7472f898688aa67e3274e4b5635f818..8a1b67fe2b8e389266cd83e54628156b6b43313c 100644
--- a/lib/SimpleSAML/Database.php
+++ b/lib/SimpleSAML/Database.php
@@ -195,7 +195,7 @@ class Database
      * @param array  $params Parameters
      *
      * @throws \Exception If an error happens while trying to execute the query.
-     * @return bool|\PDOStatement object
+     * @return \PDOStatement object
      */
     private function query($db, $stmt, $params)
     {