diff --git a/kallithea/templates/data_table/_dt_elements.html b/kallithea/templates/data_table/_dt_elements.html
--- a/kallithea/templates/data_table/_dt_elements.html
+++ b/kallithea/templates/data_table/_dt_elements.html
@@ -93,7 +93,7 @@
 <%def name="revision(name,rev,tip,author,last_msg)">
   <div>
   %if rev >= 0:
-      <a title="${h.tooltip('%s:\n\n%s' % (author,last_msg))}" class="tooltip revision-link safe-html-title" href="${h.url('changeset_home',repo_name=name,revision=tip)}">${'r%s:%s' % (rev,h.short_id(tip))}</a>
+      <a title="${'%s:\n\n%s' % (h.escape(author), h.escape(last_msg))}" class="tooltip revision-link safe-html-title" href="${h.url('changeset_home',repo_name=name,revision=tip)}">${'r%s:%s' % (rev,h.short_id(tip))}</a>
   %else:
       ${_('No changesets yet')}
   %endif