diff --git a/README.rst b/README.rst
index c2b60a7..ae65e8a 100644
--- a/README.rst
+++ b/README.rst
@@ -177,7 +177,7 @@ to register it.
 
 .. code-block:: python
 
-    from imagekit import ImageSpec
+    from imagekit import ImageSpec, register
     from imagekit.processors import ResizeToFill
 
     class Thumbnail(ImageSpec):