diff --git a/system/src/Grav/Common/Page/Medium/ImageFile.php b/system/src/Grav/Common/Page/Medium/ImageFile.php
index 9514653f2..bb9ce59aa 100644
--- a/system/src/Grav/Common/Page/Medium/ImageFile.php
+++ b/system/src/Grav/Common/Page/Medium/ImageFile.php
@@ -2,6 +2,7 @@
 namespace Grav\Common\Page\Medium;
 
 use Grav\Common\GravTrait;
+use Gregwar\Image\Exceptions\GenerationError;
 use RocketTheme\Toolbox\Event\Event;
 
 class ImageFile extends \Gregwar\Image\Image