diff --git a/bob/pad/face/utils/__init__.py b/bob/pad/face/utils/__init__.py
index 4274408459b2d3c87d8eb51a54c47817510b813a..d1f487312a2c76d2919a1963973816fc7d8ed029 100644
--- a/bob/pad/face/utils/__init__.py
+++ b/bob/pad/face/utils/__init__.py
@@ -1,6 +1,6 @@
 from .load_utils import (
     frames, number_of_frames, yield_frames, yield_faces, scale_face, blocks,
-    bbx_cropper, min_face_size_normalizer, color_augmentation,
+    bbx_cropper, min_face_size_normalizer, color_augmentation, block_generator,
     the_giant_video_loader)
 
 # gets sphinx autodoc done right - don't remove it
diff --git a/doc/api.rst b/doc/api.rst
index be9767259e61b342b9a30f761c6fe7b8ca1ae723..04e403c56f78a833559fa1b07102fc28f03e0f65 100644
--- a/doc/api.rst
+++ b/doc/api.rst
@@ -73,6 +73,7 @@ Utilities
 .. autosummary::
    bob.pad.face.utils.bbx_cropper
    bob.pad.face.utils.blocks
+   bob.pad.face.utils.blocks_generator
    bob.pad.face.utils.color_augmentation
    bob.pad.face.utils.frames
    bob.pad.face.utils.min_face_size_normalizer