diff --git a/docs/ns3_html_theme/static/doxygen.css b/docs/ns3_html_theme/static/doxygen.css
index 8e096b1..5cac435 100644
--- a/docs/ns3_html_theme/static/doxygen.css
+++ b/docs/ns3_html_theme/static/doxygen.css
@@ -105,9 +105,9 @@
 	text-decoration: none;
 }
 
-.contents a:visited {
+/*.contents a:visited {
 	color: #686868;
-}
+}*/
 
 a:hover {
 	text-decoration: underline;