diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index cf749ef..ebd006c 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -244,6 +244,7 @@ class Configuration
                     ->scalarNode('term_vector')->end()
                     ->scalarNode('null_value')->end()
                     ->booleanNode('include_in_all')->defaultValue('true')->end()
+                    ->scalarNode('lat_lon')->end()
                     ->arrayNode('fields')
                         ->useAttributeAsKey('name')
                         ->prototype('array')
@@ -260,6 +261,7 @@ class Configuration
                                 ->scalarNode('term_vector')->end()
                                 ->scalarNode('null_value')->end()
                                 ->booleanNode('include_in_all')->defaultValue('true')->end()
+                                ->scalarNode('lat_lon')->end()
                             ->end()
                         ->end()
                     ->end()