diff --git a/en/reference/configuration.rst b/en/reference/configuration.rst
index f5b640fe5..2851cf79a 100644
--- a/en/reference/configuration.rst
+++ b/en/reference/configuration.rst
@@ -120,6 +120,7 @@ setup methods:
     $paths = array("/path/to/entities-or-mapping-files");
     $isDevMode = false;
 
+    // the connection configuration
     $dbParams = array(
         'driver'   => 'pdo_mysql',
         'user'     => 'root',
@@ -141,6 +142,11 @@ These setup commands make several assumptions:
 -  If `$devMode` is false, set ``setAutoGenerateProxyClasses(false)``
 -  If third argument `$proxyDir` is not set, use the systems temporary directory.
 
+.. note::
+
+    You can learn more about the connection configuration in the
+    `Doctrine DBAL connection configuration reference <http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/configuration.html>`_.
+
 Full Configuration Example
 ~~~~~~~~~~~~~~~~~~~~~~~~~~