diff --git a/templates/layout.html b/templates/layout.html
index 950bed9..da854bf 100644
--- a/templates/layout.html
+++ b/templates/layout.html
@@ -29,6 +29,7 @@
                                 <li><a href="{{ url_for('list_db') }}">list database</a></li>
                                 <li><a href="{{ url_for('create_db') }}">create database</a></li>
                                 <li><a href="{{ url_for('memorize', card_type='1') }}">memorize</a></li>
+                                <li><a href="{{ url_for('memorize_know', card_type='1') }}">memorize know</a></li>
                                 <li>&nbsp;&nbsp;&nbsp;&nbsp;</li>
                                 <li><a href="{{ url_for('logout') }}">log out</a></li>
                             {% endif %}