diff --git a/readme.html b/readme.html
index 7ac687ad..57e71f86 100644
--- a/readme.html
+++ b/readme.html
@@ -271,7 +271,7 @@ version of GLFW.</p>
   <li>Added <code>glfwSetWindowFocusCallback</code> function and <code>GLFWwindowfocusfun</code> type for receiving window focus events</li>
   <li>Added <code>glfwSetWindowIconifyCallback</code> function and <code>GLFWwindowiconifyfun</code> type for receiving window iconification events</li>
   <li>Added <code>glfwGetCurrentWindow</code> function for retrieving the window whose OpenGL context is current</li>
-  <li>Added <code>GLFW_OPENGL_ES2_PROFILE</code> profile for creating OpenGL ES 2.0 contexts</li>
+  <li>Added <code>GLFW_OPENGL_ES2_PROFILE</code> profile for creating OpenGL ES 2.0 contexts using the <code>GLX_EXT_create_context_es2_profile</code> and <code>WGL_EXT_create_context_es2_profile</code> extensions</li>
   <li>Added <code>windows</code> simple multi-window test program</li>
   <li>Added <code>sharing</code> simple OpenGL object sharing test program</li>
   <li>Added a parameter to <code>glfwOpenWindow</code> for specifying a context the new window's context will share objects with</li>