diff --git a/docs/docs/index.xml b/docs/docs/index.xml
index 43d595b9d..659770310 100644
--- a/docs/docs/index.xml
+++ b/docs/docs/index.xml
@@ -108,7 +108,7 @@
                      <a href="dlib/matrix/matrix_la_abstract.h.html#svd">singular value decomposition</a>, 
                      <a href="dlib/matrix/matrix_utilities_abstract.h.html#trans">transpose</a>, 
                      <a href="dlib/matrix/matrix_math_functions_abstract.h.html#sin">trig functions</a>, etc...</li>
-                  <li>Unconstrained non-linear optimization algorithms such as 
+                  <li>Unconstrained non-linear optimization algorithms using the  
                       <a href="algorithms.html#cg_search_strategy">conjugate gradient</a>, 
                       <a href="algorithms.html#bfgs_search_strategy">BFGS</a>, and
                       <a href="algorithms.html#lbfgs_search_strategy">L-BFGS</a> techniques</li>