diff --git a/skimage/color/colorconv.py b/skimage/color/colorconv.py
index 28ebdc88..858fe619 100644
--- a/skimage/color/colorconv.py
+++ b/skimage/color/colorconv.py
@@ -45,7 +45,8 @@ from __future__ import division
 
 __all__ = ['convert_colorspace', 'rgb2hsv', 'hsv2rgb', 'rgb2xyz', 'xyz2rgb',
            'rgb2rgbcie', 'rgbcie2rgb', 'rgb2grey', 'rgb2gray', 'gray2rgb',
-           'xyz2lab', 'lab2xyz', 'lab2rgb', 'rgb2lab', 'is_rgb', 'is_gray'
+           'xyz2lab', 'lab2xyz', 'lab2rgb', 'rgb2lab', 'rgb2hed', 'hed2rgb',
+           'is_rgb', 'is_gray'
            ]
 
 __docformat__ = "restructuredtext en"