diff --git a/manualcrop.helpers.inc b/manualcrop.helpers.inc
index 5eacd74..dff6f9b 100644
--- a/manualcrop.helpers.inc
+++ b/manualcrop.helpers.inc
@@ -305,6 +305,7 @@ function _manualcrop_attach_dependencies(&$element, $form_state, $js_identifier,
   _manualcrop_attach_files($element);
 
   if (!isset($added[$js_identifier]) || $added[$js_identifier] != $form_state['rebuild']) {
+    $first = empty($added);
     $added[$js_identifier] = $form_state['rebuild'];
 
     // Generate image style settings.
@@ -324,7 +325,7 @@ function _manualcrop_attach_dependencies(&$element, $form_state, $js_identifier,
     $element['#attached']['js'][] = array(
       'data' => array(
         'manualcrop' => array(
-          'styles' => $styles,
+          'styles' => $first ? $styles : array(),
           'elements' => array(
             $js_identifier => array(
               'keyboard' => !empty($settings['manualcrop_keyboard']),