diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index ce1c982..44f7332 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -20,7 +20,6 @@ class Configuration implements ConfigurationInterface
 
     public function __construct($configArray, $debug)
     {
-
         $this->configArray = $configArray;
         $this->debug = $debug;
     }
@@ -388,13 +387,16 @@ class Configuration implements ConfigurationInterface
             }
 
             foreach ($index['types'] as $type) {
-                if (empty($type['mappings'])) {
-                    continue;
+                if (array_key_exists('mappings', $type) and !empty($type['mappings'])) {
+                    $nestings = array_merge_recursive($nestings, $this->getNestingsForType($type['mappings'], $nestings));
                 }
 
-                $nestings = array_merge_recursive($nestings, $this->getNestingsForType($type['mappings'], $nestings));
+                if (array_key_exists('properties', $type) and !empty($type['properties'])) {
+                    $nestings = array_merge_recursive($nestings, $this->getNestingsForType($type['properties'], $nestings));
+                }
             }
         }
+
         return $nestings;
     }
 
diff --git a/Tests/DependencyInjection/ConfigurationTest.php b/Tests/DependencyInjection/ConfigurationTest.php
index efaaa52..8f0e1b9 100644
--- a/Tests/DependencyInjection/ConfigurationTest.php
+++ b/Tests/DependencyInjection/ConfigurationTest.php
@@ -22,7 +22,7 @@ class ConfigurationTest extends \PHPUnit_Framework_TestCase
 
     private function getConfigs(array $configArray)
     {
-        $configuration = new Configuration($configArray, true);
+        $configuration = new Configuration(array($configArray), true);
 
         return $this->processor->processConfiguration($configuration, array($configArray));
     }
@@ -257,4 +257,50 @@ class ConfigurationTest extends \PHPUnit_Framework_TestCase
 
         $this->assertCount(3, $configuration['indexes']['test']['types']['test']['properties']);
     }
+
+    public function testNestedProperties()
+    {
+        $configuration = $this->getConfigs(array(
+            'clients' => array(
+                'default' => array('url' => 'http://localhost:9200'),
+            ),
+            'indexes' => array(
+                'test' => array(
+                    'types' => array(
+                        'user' => array(
+                            'properties' => array(
+                                'field1' => array(),
+                            ),
+                            'persistence' => array(),
+                        ),
+                        'user_profile' => array(
+                            '_parent' => array(
+                                'type' => 'user',
+                                'property' => 'owner',
+                            ),
+                            'properties' => array(
+                                'field1' => array(),
+                                'field2' => array(
+                                    'type' => 'nested',
+                                    'properties' => array(
+                                        'nested_field1' => array(
+                                            'type' => 'integer'
+                                        ),
+                                        'nested_field2' => array(
+                                            'type' => 'object',
+                                            'properties' => array(
+                                                'id' => array(
+                                                    'type' => 'integer'
+                                                )
+                                            )
+                                        )
+                                    )
+                                )
+                            )
+                        )
+                    )
+                )
+            )
+        ));
+    }
 }