diff --git a//weight.module b//weight.module
index f4c1c72..67cd0bd 100644
--- a/weight.module
+++ b/weight.module
@@ -292,11 +292,11 @@ function weight_field_attach_form($entity_type, $entity, &$form, &$form_state, $
         '#attached' => array('js' => array(drupal_get_path('module', 'weight') . '/weight.js')),
       );
 
-      $form['weight']['weight'] = array(
+      $form['weight']['weight_weight'] = array(
         '#type' => 'select',
         '#title' => t('Weight'),
         '#options' => _weight_get_options($settings['range']),
-        '#default_value' => isset($entity->weight) ? $entity->weight : $settings['default'],
+        '#default_value' => isset($entity->weight_weight) ? $entity->weight_weight : $settings['default'],
       );
     }
   }