diff --git a/docs/named_data_theme/layout.html b/docs/named_data_theme/layout.html
index 937f8e2..c9fb5c1 100644
--- a/docs/named_data_theme/layout.html
+++ b/docs/named_data_theme/layout.html
@@ -38,7 +38,7 @@
           <h3>{{ _('Table Of Contents') }}</h3>
           {{ toctree(includehidden=True) }}
 
-          <h3>{{ _('Additional documenation') }}</h3>
+          <h3>{{ _('Additional documentation') }}</h3>
           <ul>
             <li class="toctree-l1"><a class="reference external" href="https://redmine.named-data.net/projects/nfd/wiki">NFD Wiki</a></li>
             <li class="toctree-l1"><a class="reference internal" href="doxygen/annotated.html">API documentation (doxygen)</a></li>