diff --git a/src/views/themes/default/header.ejs b/src/views/themes/default/header.ejs
index 1225fc8..20f948e 100644
--- a/src/views/themes/default/header.ejs
+++ b/src/views/themes/default/header.ejs
@@ -4,7 +4,7 @@
   <h1><%= config.branding.title %></h1>
   <hr>
   <div id="link-container">
-    <% if(config.themeOpts.links) { %>
+    <% if(config.hasOwnProperty("themeOpts") && config.themeOpts.hasOwnProperty("links")) { %>
       <% for(const link of config.themeOpts.links) { %>
         <a href="<%= link.url %>"><%= link.title %></a>
       <% } %>