diff --git a/themes/bootstrap3/templates/Recommend/PubDateVisAjax.phtml b/themes/bootstrap3/templates/Recommend/PubDateVisAjax.phtml
index caa367c91f7a3a8c6a9cd51643379801d8a52a1c..de51091a6658fe5cf344c2d0d652764de9a83bbd 100644
--- a/themes/bootstrap3/templates/Recommend/PubDateVisAjax.phtml
+++ b/themes/bootstrap3/templates/Recommend/PubDateVisAjax.phtml
@@ -18,7 +18,7 @@
       </div>
     </div>
   <? endforeach; ?>
-  <div id="dateVisColorSettings"></div>
+  <div id="dateVisColorSettings"><!-- do not delete! used for passing CSS to Javascript --></div>
   <?
     $js = "loadVis('" . $this->recommend->getFacetFields() . "', '"
         . $this->recommend->getSearchParams() . "', path, "