diff --git a/doc_src/illuminants.rst b/doc_src/illuminants.rst
index c4383aa..0848048 100644
--- a/doc_src/illuminants.rst
+++ b/doc_src/illuminants.rst
@@ -9,8 +9,8 @@ Illuminants and observer angles are used in all color spaces that use
 reflective (instead of transmissive) light. Here are a few brief overviews
 of what these are and what they do:
 
-* `Understanding Standard Illuminants in Color Measurement <understanding illuminants>`_ - Konica Minolta
-* `What is Meant by the Term "Observer Angle"? <observer angle>`_ - XRite
+* `Understanding Standard Illuminants in Color Measurement`_ - Konica Minolta
+* `What is Meant by the Term "Observer Angle"?`_ - XRite
 
 To adjust the illuminants and/or observer angles on a color::
 
@@ -45,5 +45,5 @@ that require illuminant/observer:
 * ``'d65'``
 * ``'d75'``
 
-.. _understanding illuminants: http://sensing.konicaminolta.us/2013/11/Understanding-Standard-Illuminants-in-Color-Measurement/
-.. _observer angle: http://www.xrite.com/product_overview.aspx?ID=773&Action=support&SupportID=3544
+.. _Understanding Standard Illuminants in Color Measurement: http://sensing.konicaminolta.us/2013/11/Understanding-Standard-Illuminants-in-Color-Measurement/
+.. _What is Meant by the Term "Observer Angle"?: http://www.xrite.com/product_overview.aspx?ID=773&Action=support&SupportID=3544