--- exif_orientation.module.orig	2016-04-24 11:30:51.000000000 -0300
+++ exif_orientation.module	2016-04-24 11:31:01.000000000 -0300
@@ -97,7 +97,7 @@
       // Load the image object for manipulation
       $file_image = image_load(drupal_realpath($file->uri));
 
-      if (image_rotate($file_image, $degrees, 'FFFFFF')) {
+      if (image_rotate($file_image, $degrees, 0xFFFFFF)) {
         image_save($file_image);
       }
     }