diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 82b4ebb5..2e0e7ddb 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -151,6 +151,10 @@ protected function addDatabaseSection(ArrayNodeDefinition $node)
                                     	->addDefaultsIfNotSet()
                                         ->children()
                                             ->booleanNode('ATTR_PERSISTENT')->defaultFalse()->end()
+                                            ->scalarNode('MYSQL_ATTR_SSL_CA')->end()
+                                            ->scalarNode('MYSQL_ATTR_SSL_CERT')->end()
+                                            ->scalarNode('MYSQL_ATTR_SSL_KEY')->end()
+                                            ->scalarNode('MYSQL_ATTR_MAX_BUFFER_SIZE')->end()
                                         ->end()
                                     ->end()
                                     ->arrayNode('attributes')