]
                        ],
                        'translate' => [],
-                       'locales' => '%kernel.translator.fallbacks%',
                        'languages' => [
                                'en_gb' => 'English'
                        ],
                        'contact' => [
-                               'title' => 'John Doe',
-                               'mail' => 'contact@example.com'
+                               'address' => 'contact@example.com',
+                               'name' => 'John Doe'
                        ],
                        'context' => [],
                        'edit' => [
                                                ->defaultValue($defaults['translate'])
                                                ->scalarPrototype()->end()
                                        ->end()
-                                       ->scalarNode('locales')->cannotBeEmpty()->defaultValue($defaults['locales'])->end()
+                                       #TODO: see if we can't prevent key normalisation with ->normalizeKeys(false)
                                        ->arrayNode('languages')
                                                ->treatNullLike([])
                                                ->defaultValue($defaults['languages'])
                                        ->arrayNode('contact')
                                                ->addDefaultsIfNotSet()
                                                ->children()
-                                                       ->scalarNode('title')->cannotBeEmpty()->defaultValue($defaults['contact']['title'])->end()
-                                                       ->scalarNode('mail')->cannotBeEmpty()->defaultValue($defaults['contact']['mail'])->end()
+                                                       ->scalarNode('address')->cannotBeEmpty()->defaultValue($defaults['contact']['address'])->end()
+                                                       ->scalarNode('name')->cannotBeEmpty()->defaultValue($defaults['contact']['name'])->end()
                                                ->end()
                                        ->end()
                                        ->arrayNode('context')