diff --git a/_includes/sidebar.html b/_includes/sidebar.html
index 54b48ff..6991284 100644
--- a/_includes/sidebar.html
+++ b/_includes/sidebar.html
@@ -41,13 +41,13 @@
       {% endfor %}
 
       <li class="nav-item">
-        <a href="/neptunium/" class="nav-link">
+        <a href="/neptunium/" class="nav-link" data-proofer-ignore>
           <i class="fa-fw fas fa-microchip"></i>
           <span>NEPTUNIUM</span>
         </a>
       </li>
       <li class="nav-item">
-        <a href="/legacy_site/index.html" class="nav-link">
+        <a href="/legacy_site/index.html" class="nav-link" data-proofer-ignore>
           <i class="fa-fw fas fa-info-circle"></i>
           <span>OLD SITE</span>
         </a>