diff --git a/core/modules/image/image.module b/core/modules/image/image.module
index 79fdc88..4d97e7f 100644
--- a/core/modules/image/image.module
+++ b/core/modules/image/image.module
@@ -577,6 +577,8 @@ function image_style_load($name) {
  */
 function image_style_save($style) {
   $config = config('image.style.' . $style['name']);
+  $is_new = $config->isNew();
+
   $config->set('name', $style['name']);
   if (isset($style['effects'])) {
     $config->set('effects', $style['effects']);
@@ -585,11 +587,9 @@ function image_style_save($style) {
     $config->set('effects', array());
   }
   $config->save();
-  // @todo is_new must only be set when the configuration object did not exist
-  //   yet.
-  $style['is_new'] = TRUE;
 
   // Let other modules update as necessary on save.
+  $style['is_new'] = $is_new;
   module_invoke_all('image_style_save', $style);
 
   // Clear all caches and flush.