diff --git a/src/www/TransQuiz/translation_quiz.html b/src/www/TransQuiz/translation_quiz.html
index bb67588e8..ed3269caa 100644
--- a/src/www/TransQuiz/translation_quiz.html
+++ b/src/www/TransQuiz/translation_quiz.html
@@ -134,7 +134,7 @@
 <script type="text/javascript">
 
  var online_options={
-  grammars_url: "http://www.grammaticalframework.org/grammars/"
+  //grammars_url: "http://www.grammaticalframework.org/grammars/"
   //grammars_url: "http://tournesol.cs.chalmers.se:41296/grammars",
   //grammars_url: "http://localhost:41296/grammars",
   //grammar_list: ["Foods.pgf"], // leave undefined to get list from server