diff --git a/html/preferences.html b/html/preferences.html
index c237d8c..409d90d 100644
--- a/html/preferences.html
+++ b/html/preferences.html
@@ -62,6 +62,7 @@
             <option value="bn-BD">বাংলা</option>
             <option value="hi-IN">हिन्दी</option>
             <option value="ne-NP">नेपाली</option>
+            <option value="eu-ES">Basque</option>
         </select>
     </div>