diff --git a/tabellio/pcfviews/dossier.pt b/tabellio/pcfviews/dossier.pt
index ae5132a..de7cd5a 100644
--- a/tabellio/pcfviews/dossier.pt
+++ b/tabellio/pcfviews/dossier.pt
@@ -59,7 +59,7 @@
             <p tal:condition="histoline/commission" tal:content="histoline/commission"/>
             <p tal:condition="histoline/authors">Auteurs : <span tal:replace="structure histoline/authors_html_str"/></p>
           </td>
-          <td class="chronodoc"><a tal:condition="histoline/document" tal:attributes="href
+          <td class="chronodoc"><a tal:condition="python: histoline.document and histoline.document.to_object" tal:attributes="href
           histoline/document/to_object/absolute_url"
           tal:content="histoline/document/to_object/reftitle">doc</a>
           <span tal:condition="histoline/doc_pages">-
diff --git a/tabellio/pcfviews/question.pt b/tabellio/pcfviews/question.pt
index 4bcc4c1..1b7e59c 100644
--- a/tabellio/pcfviews/question.pt
+++ b/tabellio/pcfviews/question.pt
@@ -45,7 +45,7 @@
           <td><p tal:condition="python: hasattr(histoline, 'comment')" tal:content="histoline/comment">comment</p>
             <p tal:condition="histoline/authors" tal:content="histoline/authors_str"/>
           </td>
-          <td><a tal:condition="histoline/document" tal:attributes="href
+          <td><a tal:condition="python: histoline.document and histoline.document.to_object" tal:attributes="href
           histoline/document/to_object/absolute_url"
           tal:content="histoline/document/to_object/reftitle">doc</a></td>
          </tr>