diff --git a/tabellio/pfbviews/document.pt b/tabellio/pfbviews/document.pt
index 67b5c27..1f55caf 100644
--- a/tabellio/pfbviews/document.pt
+++ b/tabellio/pfbviews/document.pt
@@ -40,7 +40,7 @@
          <label>Auteurs</label>
          <div>
          <ul>
-          <li tal:repeat="author context/authors"><a tal:attributes="href author/to_object/absolute_url" tal:content="author/to_object/Title">Céline Delforge</a></li>
+          <li tal:repeat="author context/authors"><a tal:condition="author/to_object" tal:attributes="href author/to_object/absolute_url" tal:content="author/to_object/Title">Céline Delforge</a></li>
          </ul>
          </div>
         </div>
@@ -119,7 +119,7 @@
         <div id="results">
         <ul>
          <tal:entry tal:repeat="object view/related_docs">
-         <li tal:define="oddrow repeat/object/odd" tal:attributes="class python: oddrow and 'odd' or 'even'"><div>
+         <li tal:define="oddrow repeat/object/odd" tal:condition="object" tal:attributes="class python: oddrow and 'odd' or 'even'"><div>
             <h4><a href="#" tal:attributes="href object/absolute_url" tal:content="object/reftitle">Véronique Salvi</a></h4>
             <p class="intitule" tal:content="object/Title"/>
             <p class="authors" tal:content="python: object.get_authors_as_string()" tal:condition="python: object.authors" />