diff --git a/cookbook/configuration/pdo_session_storage.rst b/cookbook/configuration/pdo_session_storage.rst
index 3bbbff1ad42..31e1d6b781e 100644
--- a/cookbook/configuration/pdo_session_storage.rst
+++ b/cookbook/configuration/pdo_session_storage.rst
@@ -45,6 +45,8 @@ configuration format of your choice):
                     dsn:      "mysql:dbname=mydatabase"
                     user:     myuser
                     password: mypassword
+                calls:
+                    - [setAttribute, [3, 2]] # \PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION
 
             session.handler.pdo:
                 class:     Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler
@@ -71,6 +73,10 @@ configuration format of your choice):
                 <argument>mysql:dbname=mydatabase</argument>
                 <argument>myuser</argument>
                 <argument>mypassword</argument>
+                <call method="setAttribute">
+                    <argument type="constant">PDO::ATTR_ERRMODE</argument>
+                    <argument type="constant">PDO::ERRMODE_EXCEPTION</argument>
+                </call>
             </service>
 
             <service id="session.handler.pdo" class="Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler">
@@ -105,6 +111,7 @@ configuration format of your choice):
             'myuser',
             'mypassword',
         ));
+        $pdoDefinition->addMethodCall('setAttribute', array(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION));
         $container->setDefinition('pdo', $pdoDefinition);
 
         $storageDefinition = new Definition('Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler', array(