diff --git a/wagtail/wagtailimages/utils/crop.py b/wagtail/wagtailimages/utils/crop.py
index d9bc40e65..268195fd7 100644
--- a/wagtail/wagtailimages/utils/crop.py
+++ b/wagtail/wagtailimages/utils/crop.py
@@ -1,3 +1,5 @@
+from __future__ import division
+
 from wagtail.wagtailimages.utils.focal_point import FocalPoint