diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index dcd612c..0c0006c 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -62,6 +62,9 @@ class Configuration implements ConfigurationInterface
      *     build_properties:
      *         xxxx.xxxx:   xxxxxx
      *         ...
+     *     behaviors:
+     *         fooable: My\FooableBehavior
+     *         barable: src.barable.BarableBehavior
      */
     private function addGeneralSection(ArrayNodeDefinition $node)
     {
@@ -74,6 +77,10 @@ class Configuration implements ConfigurationInterface
                     ->useAttributeAsKey('key')
                     ->prototype('scalar')->end()
                 ->end()
+                ->arrayNode('behaviors')
+                    ->useAttributeAsKey('key')
+                    ->prototype('scalar')->end()
+                ->end()
         ;
     }
 
diff --git a/DependencyInjection/PropelExtension.php b/DependencyInjection/PropelExtension.php
index ffc87d9..3daf950 100644
--- a/DependencyInjection/PropelExtension.php
+++ b/DependencyInjection/PropelExtension.php
@@ -75,12 +75,20 @@ class PropelExtension extends Extension
             $loader->load('converters.xml');
         }
 
+        // build properties
         if (isset($config['build_properties']) && is_array($config['build_properties'])) {
             $buildProperties = $config['build_properties'];
         } else {
             $buildProperties = array();
         }
 
+        // behaviors
+        if (isset($config['behaviors']) && is_array($config['behaviors'])) {
+            foreach ($config['behaviors'] as $name => $class) {
+                $buildProperties[sprintf('propel.behavior.%s.class', $name)] = $class;
+            }
+        }
+
         $container->getDefinition('propel.build_properties')->setArguments(array($buildProperties));
 
         if (!empty($config['dbal'])) {
@@ -145,16 +153,6 @@ class PropelExtension extends Extension
         return __DIR__.'/../Resources/config/schema';
     }
 
-    /**
-     * Returns the namespace to be used for this extension (XML namespace).
-     *
-     * @return string The XML namespace
-     */
-    public function getNamespace()
-    {
-        return 'http://www.symfony-project.org/schema/dic/propel';
-    }
-
     /**
      * Returns the recommended alias to use in XML.
      *