Fix link
diff --git a/index_es.php b/index_es.php
index 11b0d30..9d0066a 100644
--- a/index_es.php
+++ b/index_es.php
@@ -10,7 +10,7 @@
     specifications; and related documentation. </p>
 
 <p> The OpenGL ES Registry is part of the <a
-    href="http://www.khronos.org/registry/"> Combined OpenGL Registry </a>
+    href="http://www.khronos.org/registry/OpenGL/"> Combined OpenGL Registry </a>
     for OpenGL, OpenGL ES, and OpenGL SC, which includes the <a
     href="xml/README.md">XML API registry</a> of reserved enumerants and
     functions. </p>
diff --git a/index_gl.php b/index_gl.php
index 3bf2174..88d3cd5 100644
--- a/index_gl.php
+++ b/index_gl.php
@@ -11,7 +11,7 @@
     for the GLX, WGL, and GLU APIs. </p>
 
 <p> The OpenGL registry is part of the <a
-    href="http://www.khronos.org/registry/"> Combined OpenGL Registry </a>
+    href="http://www.khronos.org/registry/OpenGL/"> Combined OpenGL Registry </a>
     for OpenGL, OpenGL ES, and OpenGL SC, which includes the <a
     href="xml/README.md">XML API registry</a> of reserved enumerants and
     functions. </p>
diff --git a/index_sc.php b/index_sc.php
index 1ea93f1..f297da7 100644
--- a/index_sc.php
+++ b/index_sc.php
@@ -10,7 +10,7 @@
     documentation. </p>
 
 <p> The OpenGL SC Registry is part of the combined <a
-    href="http://www.khronos.org/registry/"> Combined OpenGL Registry </a>
+    href="http://www.khronos.org/registry/OpenGL/"> Combined OpenGL Registry </a>
     for OpenGL, OpenGL ES, and OpenGL SC, which includes the <a
     href="xml/README.md">XML API registry</a> of reserved enumerants and
     functions. </p>