diff --git a/README.rst b/README.rst
index 7a0104ba..524e0f13 100644
--- a/README.rst
+++ b/README.rst
@@ -105,7 +105,7 @@ Example Usage
    client = vision.ImageAnnotatorClient()
    response = client.annotate_image({
      'image': {'source': {'image_uri': 'gs://my-test-bucket/image.jpg'}},
-     'features': [{'type': vision.enums.Feature.Type.FACE_DETECTION}],
+     'features': [{'type_': vision.Feature.Type.FACE_DETECTION}]
    })
 
 Next Steps