diff --git a/src/Symfony/Bundle/DoctrineBundle/Resources/config/orm.xml b/src/Symfony/Bundle/DoctrineBundle/Resources/config/orm.xml
index 2a01ae14d0f60..f80b62218b51e 100644
--- a/src/Symfony/Bundle/DoctrineBundle/Resources/config/orm.xml
+++ b/src/Symfony/Bundle/DoctrineBundle/Resources/config/orm.xml
@@ -52,6 +52,9 @@
               <argument>Doctrine\ORM\Mapping\</argument>
               <argument>orm</argument>
             </call>
+            <call method="setDefaultAnnotationNamespace">
+              <argument>Doctrine\ORM\Mapping\</argument>
+            </call>
         </service>
 
         <!--- XML Metadata Driver Service -->
@@ -64,4 +67,4 @@
             <argument>%doctrine.orm.metadata_driver.mapping_dirs%</argument>
         </service>
     </services>
-</container>
\ No newline at end of file
+</container>