diff --git a/file_entity/file_entity.module b/file_entity/file_entity.module
index ddab83e..84e888a 100644
--- a/file_entity/file_entity.module
+++ b/file_entity/file_entity.module
@@ -255,7 +255,7 @@ function file_entity_file_load($files) {
 function file_entity_image_dimensions($file, $force = FALSE) {
   // Prevent PHP notices when trying to read empty files.
   // @see http://drupal.org/node/681042
-  if (!filesize($file->uri)) {
+  if (!$file->filesize) {
     return;
   }