diff --git a/plugins/mezuro/views/content_viewer/_module_result.rhtml b/plugins/mezuro/views/content_viewer/_module_result.rhtml
index adb0392..4377b7e 100644
--- a/plugins/mezuro/views/content_viewer/_module_result.rhtml
+++ b/plugins/mezuro/views/content_viewer/_module_result.rhtml
@@ -40,7 +40,7 @@
   <tfoot>
     <tr>
       <td colspan = "1">
-        <div id='historical-grade'>
+        <div id='historical-grade'></div>
       </td>
       <td colspan = "4" align = "right">
         <a href="#" show-grade-history="<%= module_result.module.name %>" >
--
libgit2 0.21.2