diff --git a/skimage/util/__init__.py b/skimage/util/__init__.py
index 8daaa60d..7e41627b 100644
--- a/skimage/util/__init__.py
+++ b/skimage/util/__init__.py
@@ -1,2 +1,13 @@
-from .dtype import *
-from .shape import *
+from .dtype import (img_as_float, img_as_int, img_as_uint, img_as_ubyte,
+                    img_as_bool, dtype_limits)
+from .shape import view_as_blocks, view_as_windows
+
+
+__all__ = ['img_as_float',
+           'img_as_int',
+           'img_as_uint',
+           'img_as_ubyte',
+           'img_as_bool',
+           'dtype_limits',
+           'view_as_blocks',
+           'view_as_windows']